61520875

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{131}}^1$

素因数の和:193

約数の個数: 48

約数和(自身を含む): 88504416

約数和(自身を除く): 26983541

約数列:

[1, 5, 13, 17, 25, 65, 85, 125, 131, 221, 289, 325, 425, 655, 1105, 1445, 1625, 1703, 2125, 2227, 3275, 3757, 5525, 7225, 8515, 11135, 16375, 18785, 27625, 28951, 36125, 37859, 42575, 55675, 93925, 144755, 189295, 212875, 278375, 469625, 492167, 723775, 946475, 2460835, 3618875, 4732375, 12304175, 61520875]

約数ペア:

[(1, 61520875), (5, 12304175), (13, 4732375), (17, 3618875), (25, 2460835), (65, 946475), (85, 723775), (125, 492167), (131, 469625), (221, 278375), (289, 212875), (325, 189295), (425, 144755), (655, 93925), (1105, 55675), (1445, 42575), (1625, 37859), (1703, 36125), (2125, 28951), (2227, 27625), (3275, 18785), (3757, 16375), (5525, 11135), (7225, 8515)]