20576360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1709}}^1$

素因数の和:1770

約数の個数: 64

約数和(自身を含む): 54172800

約数和(自身を除く): 33596440

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, 1709, 1720, 2408, 3010, 3418, 6020, 6836, 8545, 11963, 12040, 13672, 17090, 23926, 34180, 47852, 59815, 68360, 73487, 95704, 119630, 146974, 239260, 293948, 367435, 478520, 514409, 587896, 734870, 1028818, 1469740, 2057636, 2572045, 2939480, 4115272, 5144090, 10288180, 20576360]

約数ペア:

[(1, 20576360), (2, 10288180), (4, 5144090), (5, 4115272), (7, 2939480), (8, 2572045), (10, 2057636), (14, 1469740), (20, 1028818), (28, 734870), (35, 587896), (40, 514409), (43, 478520), (56, 367435), (70, 293948), (86, 239260), (140, 146974), (172, 119630), (215, 95704), (280, 73487), (301, 68360), (344, 59815), (430, 47852), (602, 34180), (860, 23926), (1204, 17090), (1505, 13672), (1709, 12040), (1720, 11963), (2408, 8545), (3010, 6836), (3418, 6020)]