15364375

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:125

約数の個数: 40

約数和(自身を含む): 21693056

約数和(自身を除く): 6328681

約数列:

[1, 5, 13, 25, 31, 61, 65, 125, 155, 305, 325, 403, 625, 775, 793, 1525, 1625, 1891, 2015, 3875, 3965, 7625, 8125, 9455, 10075, 19375, 19825, 24583, 38125, 47275, 50375, 99125, 122915, 236375, 251875, 495625, 614575, 1181875, 3072875, 15364375]

約数ペア:

[(1, 15364375), (5, 3072875), (13, 1181875), (25, 614575), (31, 495625), (61, 251875), (65, 236375), (125, 122915), (155, 99125), (305, 50375), (325, 47275), (403, 38125), (625, 24583), (775, 19825), (793, 19375), (1525, 10075), (1625, 9455), (1891, 8125), (2015, 7625), (3875, 3965)]