18974001825

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{4937}}^1$

素因数の和:5032

約数の個数: 144

約数和(自身を含む): 38208268800

約数和(自身を除く): 19234266975

約数列:

[1, 3, 5, 9, 15, 19, 25, 29, 31, 45, 57, 75, 87, 93, 95, 145, 155, 171, 225, 261, 279, 285, 435, 465, 475, 551, 589, 725, 775, 855, 899, 1305, 1395, 1425, 1653, 1767, 2175, 2325, 2697, 2755, 2945, 4275, 4495, 4937, 4959, 5301, 6525, 6975, 8091, 8265, 8835, 13485, 13775, 14725, 14811, 17081, 22475, 24685, 24795, 26505, 40455, 41325, 44175, 44433, 51243, 67425, 74055, 85405, 93803, 123425, 123975, 132525, 143173, 153047, 153729, 202275, 222165, 256215, 281409, 370275, 427025, 429519, 459141, 469015, 715865, 765235, 768645, 844227, 1110825, 1281075, 1288557, 1377423, 1407045, 2147595, 2295705, 2345075, 2720287, 2907893, 3579325, 3826175, 3843225, 4221135, 4438363, 6442785, 6887115, 7035225, 8160861, 8723679, 10737975, 11478525, 13315089, 13601435, 14539465, 21105675, 22191815, 24482583, 26171037, 32213925, 34435575, 39945267, 40804305, 43618395, 66575445, 68007175, 72697325, 84328897, 110959075, 122412915, 130855185, 199726335, 204021525, 218091975, 252986691, 332877225, 421644485, 612064575, 654275925, 758960073, 998631675, 1264933455, 2108222425, 3794800365, 6324667275, 18974001825]

約数ペア:

[(1, 18974001825), (3, 6324667275), (5, 3794800365), (9, 2108222425), (15, 1264933455), (19, 998631675), (25, 758960073), (29, 654275925), (31, 612064575), (45, 421644485), (57, 332877225), (75, 252986691), (87, 218091975), (93, 204021525), (95, 199726335), (145, 130855185), (155, 122412915), (171, 110959075), (225, 84328897), (261, 72697325), (279, 68007175), (285, 66575445), (435, 43618395), (465, 40804305), (475, 39945267), (551, 34435575), (589, 32213925), (725, 26171037), (775, 24482583), (855, 22191815), (899, 21105675), (1305, 14539465), (1395, 13601435), (1425, 13315089), (1653, 11478525), (1767, 10737975), (2175, 8723679), (2325, 8160861), (2697, 7035225), (2755, 6887115), (2945, 6442785), (4275, 4438363), (4495, 4221135), (4937, 3843225), (4959, 3826175), (5301, 3579325), (6525, 2907893), (6975, 2720287), (8091, 2345075), (8265, 2295705), (8835, 2147595), (13485, 1407045), (13775, 1377423), (14725, 1288557), (14811, 1281075), (17081, 1110825), (22475, 844227), (24685, 768645), (24795, 765235), (26505, 715865), (40455, 469015), (41325, 459141), (44175, 429519), (44433, 427025), (51243, 370275), (67425, 281409), (74055, 256215), (85405, 222165), (93803, 202275), (123425, 153729), (123975, 153047), (132525, 143173)]