87697640

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{761}}^1$

素因数の和:882

約数の個数: 64

約数和(自身を含む): 205191360

約数和(自身を除く): 117493720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 67, 86, 134, 172, 215, 268, 335, 344, 430, 536, 670, 761, 860, 1340, 1522, 1720, 2680, 2881, 3044, 3805, 5762, 6088, 7610, 11524, 14405, 15220, 23048, 28810, 30440, 32723, 50987, 57620, 65446, 101974, 115240, 130892, 163615, 203948, 254935, 261784, 327230, 407896, 509870, 654460, 1019740, 1308920, 2039480, 2192441, 4384882, 8769764, 10962205, 17539528, 21924410, 43848820, 87697640]

約数ペア:

[(1, 87697640), (2, 43848820), (4, 21924410), (5, 17539528), (8, 10962205), (10, 8769764), (20, 4384882), (40, 2192441), (43, 2039480), (67, 1308920), (86, 1019740), (134, 654460), (172, 509870), (215, 407896), (268, 327230), (335, 261784), (344, 254935), (430, 203948), (536, 163615), (670, 130892), (761, 115240), (860, 101974), (1340, 65446), (1522, 57620), (1720, 50987), (2680, 32723), (2881, 30440), (3044, 28810), (3805, 23048), (5762, 15220), (6088, 14405), (7610, 11524)]