20180871375

素因数分解:

$3^1\times 5^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:295

約数の個数: 256

約数和(自身を含む): 42268262400

約数和(自身を除く): 22087391025

約数列:

[1, 3, 5, 7, 15, 19, 21, 25, 35, 41, 57, 71, 75, 95, 105, 123, 125, 133, 139, 175, 205, 213, 285, 287, 355, 375, 399, 417, 475, 497, 525, 615, 665, 695, 779, 861, 875, 973, 1025, 1065, 1349, 1425, 1435, 1491, 1775, 1995, 2085, 2337, 2375, 2485, 2625, 2641, 2911, 2919, 3075, 3325, 3475, 3895, 4047, 4305, 4865, 5125, 5325, 5453, 5699, 6745, 7125, 7175, 7455, 7923, 8733, 8875, 9443, 9869, 9975, 10425, 11685, 12425, 13205, 14555, 14595, 15375, 16359, 16625, 17097, 17375, 18487, 19475, 20235, 20377, 21525, 24325, 26625, 27265, 28329, 28495, 29607, 33725, 35875, 37275, 39615, 39893, 43665, 47215, 49345, 49875, 52125, 55309, 55461, 58425, 61131, 62125, 66025, 69083, 72775, 72975, 81795, 85485, 92435, 97375, 101175, 101885, 107625, 108281, 119679, 121625, 136325, 141645, 142475, 148035, 165927, 168625, 186375, 187511, 198075, 199465, 207249, 218325, 236075, 246725, 276545, 277305, 292125, 305655, 324843, 330125, 345415, 363875, 364875, 387163, 404629, 408975, 427425, 462175, 505875, 509425, 541405, 562533, 598395, 681625, 708225, 712375, 740175, 757967, 829635, 937555, 990375, 997325, 1036245, 1091625, 1161489, 1180375, 1213887, 1233625, 1312577, 1382725, 1386525, 1528275, 1624215, 1727075, 1935815, 2023145, 2044875, 2137125, 2273901, 2310875, 2547125, 2707025, 2812665, 2832403, 2991975, 3541125, 3700875, 3789835, 3937731, 4148175, 4687775, 4986625, 5181225, 5807445, 6069435, 6562885, 6913625, 6932625, 7641375, 7687951, 8121075, 8497209, 8635375, 9679075, 10115725, 11369505, 13535125, 14063325, 14162015, 14959875, 18949175, 19688655, 20740875, 23063853, 23438875, 25906125, 29037225, 30347175, 32814425, 38439755, 40605375, 42486045, 48395375, 50578625, 53815657, 56847525, 70316625, 70810075, 94745875, 98443275, 115319265, 145186125, 151735875, 161446971, 164072125, 192198775, 212430225, 269078285, 284237625, 354050375, 492216375, 576596325, 807234855, 960993875, 1062151125, 1345391425, 2882981625, 4036174275, 6726957125, 20180871375]

約数ペア:

[(1, 20180871375), (3, 6726957125), (5, 4036174275), (7, 2882981625), (15, 1345391425), (19, 1062151125), (21, 960993875), (25, 807234855), (35, 576596325), (41, 492216375), (57, 354050375), (71, 284237625), (75, 269078285), (95, 212430225), (105, 192198775), (123, 164072125), (125, 161446971), (133, 151735875), (139, 145186125), (175, 115319265), (205, 98443275), (213, 94745875), (285, 70810075), (287, 70316625), (355, 56847525), (375, 53815657), (399, 50578625), (417, 48395375), (475, 42486045), (497, 40605375), (525, 38439755), (615, 32814425), (665, 30347175), (695, 29037225), (779, 25906125), (861, 23438875), (875, 23063853), (973, 20740875), (1025, 19688655), (1065, 18949175), (1349, 14959875), (1425, 14162015), (1435, 14063325), (1491, 13535125), (1775, 11369505), (1995, 10115725), (2085, 9679075), (2337, 8635375), (2375, 8497209), (2485, 8121075), (2625, 7687951), (2641, 7641375), (2911, 6932625), (2919, 6913625), (3075, 6562885), (3325, 6069435), (3475, 5807445), (3895, 5181225), (4047, 4986625), (4305, 4687775), (4865, 4148175), (5125, 3937731), (5325, 3789835), (5453, 3700875), (5699, 3541125), (6745, 2991975), (7125, 2832403), (7175, 2812665), (7455, 2707025), (7923, 2547125), (8733, 2310875), (8875, 2273901), (9443, 2137125), (9869, 2044875), (9975, 2023145), (10425, 1935815), (11685, 1727075), (12425, 1624215), (13205, 1528275), (14555, 1386525), (14595, 1382725), (15375, 1312577), (16359, 1233625), (16625, 1213887), (17097, 1180375), (17375, 1161489), (18487, 1091625), (19475, 1036245), (20235, 997325), (20377, 990375), (21525, 937555), (24325, 829635), (26625, 757967), (27265, 740175), (28329, 712375), (28495, 708225), (29607, 681625), (33725, 598395), (35875, 562533), (37275, 541405), (39615, 509425), (39893, 505875), (43665, 462175), (47215, 427425), (49345, 408975), (49875, 404629), (52125, 387163), (55309, 364875), (55461, 363875), (58425, 345415), (61131, 330125), (62125, 324843), (66025, 305655), (69083, 292125), (72775, 277305), (72975, 276545), (81795, 246725), (85485, 236075), (92435, 218325), (97375, 207249), (101175, 199465), (101885, 198075), (107625, 187511), (108281, 186375), (119679, 168625), (121625, 165927), (136325, 148035), (141645, 142475)]