20785050

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:78

約数の個数: 288

約数和(自身を含む): 73120320

約数和(自身を除く): 52335270

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 13, 15, 17, 18, 19, 22, 25, 26, 30, 33, 34, 38, 39, 45, 50, 51, 55, 57, 65, 66, 75, 78, 85, 90, 95, 99, 102, 110, 114, 117, 130, 143, 150, 153, 165, 170, 171, 187, 190, 195, 198, 209, 221, 225, 234, 247, 255, 275, 285, 286, 306, 323, 325, 330, 342, 374, 390, 418, 425, 429, 442, 450, 475, 494, 495, 510, 550, 561, 570, 585, 627, 646, 650, 663, 715, 741, 765, 825, 850, 855, 858, 935, 950, 969, 975, 990, 1045, 1105, 1122, 1170, 1235, 1254, 1275, 1287, 1326, 1425, 1430, 1482, 1530, 1615, 1650, 1683, 1710, 1870, 1881, 1938, 1950, 1989, 2090, 2145, 2210, 2223, 2431, 2470, 2475, 2550, 2574, 2717, 2805, 2850, 2907, 2925, 3135, 3230, 3315, 3366, 3553, 3575, 3705, 3762, 3825, 3978, 4199, 4275, 4290, 4446, 4675, 4845, 4862, 4950, 5225, 5434, 5525, 5610, 5814, 5850, 6175, 6270, 6435, 6630, 7106, 7150, 7293, 7410, 7650, 8075, 8151, 8398, 8415, 8550, 9350, 9405, 9690, 9945, 10450, 10659, 10725, 11050, 11115, 12155, 12350, 12597, 12870, 13585, 14025, 14535, 14586, 15675, 16150, 16302, 16575, 16830, 17765, 18525, 18810, 19890, 20995, 21318, 21450, 21879, 22230, 24225, 24310, 24453, 25194, 27170, 28050, 29070, 31350, 31977, 32175, 33150, 35530, 36465, 37050, 37791, 40755, 41990, 42075, 43758, 46189, 47025, 48450, 48906, 49725, 53295, 55575, 60775, 62985, 63954, 64350, 67925, 72675, 72930, 75582, 81510, 84150, 88825, 92378, 94050, 99450, 104975, 106590, 109395, 111150, 121550, 122265, 125970, 135850, 138567, 145350, 159885, 177650, 182325, 188955, 203775, 209950, 218790, 230945, 244530, 266475, 277134, 314925, 319770, 364650, 377910, 407550, 415701, 461890, 532950, 546975, 611325, 629850, 692835, 799425, 831402, 944775, 1093950, 1154725, 1222650, 1385670, 1598850, 1889550, 2078505, 2309450, 3464175, 4157010, 6928350, 10392525, 20785050]

約数ペア:

[(1, 20785050), (2, 10392525), (3, 6928350), (5, 4157010), (6, 3464175), (9, 2309450), (10, 2078505), (11, 1889550), (13, 1598850), (15, 1385670), (17, 1222650), (18, 1154725), (19, 1093950), (22, 944775), (25, 831402), (26, 799425), (30, 692835), (33, 629850), (34, 611325), (38, 546975), (39, 532950), (45, 461890), (50, 415701), (51, 407550), (55, 377910), (57, 364650), (65, 319770), (66, 314925), (75, 277134), (78, 266475), (85, 244530), (90, 230945), (95, 218790), (99, 209950), (102, 203775), (110, 188955), (114, 182325), (117, 177650), (130, 159885), (143, 145350), (150, 138567), (153, 135850), (165, 125970), (170, 122265), (171, 121550), (187, 111150), (190, 109395), (195, 106590), (198, 104975), (209, 99450), (221, 94050), (225, 92378), (234, 88825), (247, 84150), (255, 81510), (275, 75582), (285, 72930), (286, 72675), (306, 67925), (323, 64350), (325, 63954), (330, 62985), (342, 60775), (374, 55575), (390, 53295), (418, 49725), (425, 48906), (429, 48450), (442, 47025), (450, 46189), (475, 43758), (494, 42075), (495, 41990), (510, 40755), (550, 37791), (561, 37050), (570, 36465), (585, 35530), (627, 33150), (646, 32175), (650, 31977), (663, 31350), (715, 29070), (741, 28050), (765, 27170), (825, 25194), (850, 24453), (855, 24310), (858, 24225), (935, 22230), (950, 21879), (969, 21450), (975, 21318), (990, 20995), (1045, 19890), (1105, 18810), (1122, 18525), (1170, 17765), (1235, 16830), (1254, 16575), (1275, 16302), (1287, 16150), (1326, 15675), (1425, 14586), (1430, 14535), (1482, 14025), (1530, 13585), (1615, 12870), (1650, 12597), (1683, 12350), (1710, 12155), (1870, 11115), (1881, 11050), (1938, 10725), (1950, 10659), (1989, 10450), (2090, 9945), (2145, 9690), (2210, 9405), (2223, 9350), (2431, 8550), (2470, 8415), (2475, 8398), (2550, 8151), (2574, 8075), (2717, 7650), (2805, 7410), (2850, 7293), (2907, 7150), (2925, 7106), (3135, 6630), (3230, 6435), (3315, 6270), (3366, 6175), (3553, 5850), (3575, 5814), (3705, 5610), (3762, 5525), (3825, 5434), (3978, 5225), (4199, 4950), (4275, 4862), (4290, 4845), (4446, 4675)]