64042480

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{18617}}^1$

素因数の和:18673

約数の個数: 40

約数和(自身を含む): 152369712

約数和(自身を除く): 88327232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 18617, 37234, 74468, 93085, 148936, 186170, 297872, 372340, 744680, 800531, 1489360, 1601062, 3202124, 4002655, 6404248, 8005310, 12808496, 16010620, 32021240, 64042480]

約数ペア:

[(1, 64042480), (2, 32021240), (4, 16010620), (5, 12808496), (8, 8005310), (10, 6404248), (16, 4002655), (20, 3202124), (40, 1601062), (43, 1489360), (80, 800531), (86, 744680), (172, 372340), (215, 297872), (344, 186170), (430, 148936), (688, 93085), (860, 74468), (1720, 37234), (3440, 18617)]