80441875

素因数分解:

$5^4\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{113}}^1$

素因数の和:217

約数の個数: 40

約数和(自身を含む): 108977616

約数和(自身を除く): 28535741

約数列:

[1, 5, 17, 25, 67, 85, 113, 125, 335, 425, 565, 625, 1139, 1675, 1921, 2125, 2825, 5695, 7571, 8375, 9605, 10625, 14125, 28475, 37855, 41875, 48025, 70625, 128707, 142375, 189275, 240125, 643535, 711875, 946375, 1200625, 3217675, 4731875, 16088375, 80441875]

約数ペア:

[(1, 80441875), (5, 16088375), (17, 4731875), (25, 3217675), (67, 1200625), (85, 946375), (113, 711875), (125, 643535), (335, 240125), (425, 189275), (565, 142375), (625, 128707), (1139, 70625), (1675, 48025), (1921, 41875), (2125, 37855), (2825, 28475), (5695, 14125), (7571, 10625), (8375, 9605)]