31508680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{2617}}^1$

素因数の和:2678

約数の個数: 64

約数和(自身を含む): 82938240

約数和(自身を除く): 51429560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 56, 70, 86, 140, 172, 215, 280, 301, 344, 430, 602, 860, 1204, 1505, 1720, 2408, 2617, 3010, 5234, 6020, 10468, 12040, 13085, 18319, 20936, 26170, 36638, 52340, 73276, 91595, 104680, 112531, 146552, 183190, 225062, 366380, 450124, 562655, 732760, 787717, 900248, 1125310, 1575434, 2250620, 3150868, 3938585, 4501240, 6301736, 7877170, 15754340, 31508680]

約数ペア:

[(1, 31508680), (2, 15754340), (4, 7877170), (5, 6301736), (7, 4501240), (8, 3938585), (10, 3150868), (14, 2250620), (20, 1575434), (28, 1125310), (35, 900248), (40, 787717), (43, 732760), (56, 562655), (70, 450124), (86, 366380), (140, 225062), (172, 183190), (215, 146552), (280, 112531), (301, 104680), (344, 91595), (430, 73276), (602, 52340), (860, 36638), (1204, 26170), (1505, 20936), (1720, 18319), (2408, 13085), (2617, 12040), (3010, 10468), (5234, 6020)]