1438961875

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1$

素因数の和:290

約数の個数: 80

約数和(自身を含む): 2078334720

約数和(自身を除く): 639372845

約数列:

[1, 5, 13, 25, 29, 31, 65, 125, 145, 155, 197, 325, 377, 403, 625, 725, 775, 899, 985, 1625, 1885, 2015, 2561, 3625, 3875, 4495, 4925, 5713, 6107, 8125, 9425, 10075, 11687, 12805, 18125, 19375, 22475, 24625, 28565, 30535, 47125, 50375, 58435, 64025, 74269, 79391, 112375, 123125, 142825, 152675, 177103, 235625, 251875, 292175, 320125, 371345, 396955, 561875, 714125, 763375, 885515, 1460875, 1600625, 1856725, 1984775, 2302339, 3570625, 3816875, 4427575, 7304375, 9283625, 9923875, 11511695, 22137875, 46418125, 49619375, 57558475, 110689375, 287792375, 1438961875]

約数ペア:

[(1, 1438961875), (5, 287792375), (13, 110689375), (25, 57558475), (29, 49619375), (31, 46418125), (65, 22137875), (125, 11511695), (145, 9923875), (155, 9283625), (197, 7304375), (325, 4427575), (377, 3816875), (403, 3570625), (625, 2302339), (725, 1984775), (775, 1856725), (899, 1600625), (985, 1460875), (1625, 885515), (1885, 763375), (2015, 714125), (2561, 561875), (3625, 396955), (3875, 371345), (4495, 320125), (4925, 292175), (5713, 251875), (6107, 235625), (8125, 177103), (9425, 152675), (10075, 142825), (11687, 123125), (12805, 112375), (18125, 79391), (19375, 74269), (22475, 64025), (24625, 58435), (28565, 50375), (30535, 47125)]