28312375

素因数分解:

$5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1$

素因数の和:185

約数の個数: 64

約数和(自身を含む): 46126080

約数和(自身を除く): 17813705

約数列:

[1, 5, 7, 13, 19, 25, 35, 65, 91, 95, 125, 131, 133, 175, 247, 325, 455, 475, 655, 665, 875, 917, 1235, 1625, 1703, 1729, 2275, 2375, 2489, 3275, 3325, 4585, 6175, 8515, 8645, 11375, 11921, 12445, 16375, 16625, 17423, 22925, 30875, 32357, 42575, 43225, 59605, 62225, 87115, 114625, 161785, 212875, 216125, 226499, 298025, 311125, 435575, 808925, 1132495, 1490125, 2177875, 4044625, 5662475, 28312375]

約数ペア:

[(1, 28312375), (5, 5662475), (7, 4044625), (13, 2177875), (19, 1490125), (25, 1132495), (35, 808925), (65, 435575), (91, 311125), (95, 298025), (125, 226499), (131, 216125), (133, 212875), (175, 161785), (247, 114625), (325, 87115), (455, 62225), (475, 59605), (655, 43225), (665, 42575), (875, 32357), (917, 30875), (1235, 22925), (1625, 17423), (1703, 16625), (1729, 16375), (2275, 12445), (2375, 11921), (2489, 11375), (3275, 8645), (3325, 8515), (4585, 6175)]