49619375

素因数分解:

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

素因数の和:261

約数の個数: 40

約数和(自身を含む): 69277824

約数和(自身を除く): 19658449

約数列:

[1, 5, 13, 25, 31, 65, 125, 155, 197, 325, 403, 625, 775, 985, 1625, 2015, 2561, 3875, 4925, 6107, 8125, 10075, 12805, 19375, 24625, 30535, 50375, 64025, 79391, 123125, 152675, 251875, 320125, 396955, 763375, 1600625, 1984775, 3816875, 9923875, 49619375]

約数ペア:

[(1, 49619375), (5, 9923875), (13, 3816875), (25, 1984775), (31, 1600625), (65, 763375), (125, 396955), (155, 320125), (197, 251875), (325, 152675), (403, 123125), (625, 79391), (775, 64025), (985, 50375), (1625, 30535), (2015, 24625), (2561, 19375), (3875, 12805), (4925, 10075), (6107, 8125)]