7954375

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1$

素因数の和:133

約数の個数: 40

約数和(自身を含む): 11808720

約数和(自身を除く): 3854345

約数列:

[1, 5, 11, 13, 25, 55, 65, 89, 125, 143, 275, 325, 445, 625, 715, 979, 1157, 1375, 1625, 2225, 3575, 4895, 5785, 6875, 8125, 11125, 12727, 17875, 24475, 28925, 55625, 63635, 89375, 122375, 144625, 318175, 611875, 723125, 1590875, 7954375]

約数ペア:

[(1, 7954375), (5, 1590875), (11, 723125), (13, 611875), (25, 318175), (55, 144625), (65, 122375), (89, 89375), (125, 63635), (143, 55625), (275, 28925), (325, 24475), (445, 17875), (625, 12727), (715, 11125), (979, 8125), (1157, 6875), (1375, 5785), (1625, 4895), (2225, 3575)]