80726480

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{757}}^1$

素因数の和:844

約数の個数: 80

約数和(自身を含む): 198511104

約数和(自身を除く): 117784624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 43, 62, 80, 86, 124, 155, 172, 215, 248, 310, 344, 430, 496, 620, 688, 757, 860, 1240, 1333, 1514, 1720, 2480, 2666, 3028, 3440, 3785, 5332, 6056, 6665, 7570, 10664, 12112, 13330, 15140, 21328, 23467, 26660, 30280, 32551, 46934, 53320, 60560, 65102, 93868, 106640, 117335, 130204, 162755, 187736, 234670, 260408, 325510, 375472, 469340, 520816, 651020, 938680, 1009081, 1302040, 1877360, 2018162, 2604080, 4036324, 5045405, 8072648, 10090810, 16145296, 20181620, 40363240, 80726480]

約数ペア:

[(1, 80726480), (2, 40363240), (4, 20181620), (5, 16145296), (8, 10090810), (10, 8072648), (16, 5045405), (20, 4036324), (31, 2604080), (40, 2018162), (43, 1877360), (62, 1302040), (80, 1009081), (86, 938680), (124, 651020), (155, 520816), (172, 469340), (215, 375472), (248, 325510), (310, 260408), (344, 234670), (430, 187736), (496, 162755), (620, 130204), (688, 117335), (757, 106640), (860, 93868), (1240, 65102), (1333, 60560), (1514, 53320), (1720, 46934), (2480, 32551), (2666, 30280), (3028, 26660), (3440, 23467), (3785, 21328), (5332, 15140), (6056, 13330), (6665, 12112), (7570, 10664)]