18004960

素因数分解:

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

素因数の和:2675

約数の個数: 48

約数和(自身を含む): 43542576

約数和(自身を除く): 25537616

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 80, 86, 160, 172, 215, 344, 430, 688, 860, 1376, 1720, 2617, 3440, 5234, 6880, 10468, 13085, 20936, 26170, 41872, 52340, 83744, 104680, 112531, 209360, 225062, 418720, 450124, 562655, 900248, 1125310, 1800496, 2250620, 3600992, 4501240, 9002480, 18004960]

約数ペア:

[(1, 18004960), (2, 9002480), (4, 4501240), (5, 3600992), (8, 2250620), (10, 1800496), (16, 1125310), (20, 900248), (32, 562655), (40, 450124), (43, 418720), (80, 225062), (86, 209360), (160, 112531), (172, 104680), (215, 83744), (344, 52340), (430, 41872), (688, 26170), (860, 20936), (1376, 13085), (1720, 10468), (2617, 6880), (3440, 5234)]