80387680

素因数分解:

$2^5\times 5^1\times {\mathrm{37}}^2\times {\mathrm{367}}^1$

素因数の和:456

約数の個数: 72

約数和(自身を含む): 195719328

約数和(自身を除く): 115331648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 74, 80, 148, 160, 185, 296, 367, 370, 592, 734, 740, 1184, 1369, 1468, 1480, 1835, 2738, 2936, 2960, 3670, 5476, 5872, 5920, 6845, 7340, 10952, 11744, 13579, 13690, 14680, 21904, 27158, 27380, 29360, 43808, 54316, 54760, 58720, 67895, 108632, 109520, 135790, 217264, 219040, 271580, 434528, 502423, 543160, 1004846, 1086320, 2009692, 2172640, 2512115, 4019384, 5024230, 8038768, 10048460, 16077536, 20096920, 40193840, 80387680]

約数ペア:

[(1, 80387680), (2, 40193840), (4, 20096920), (5, 16077536), (8, 10048460), (10, 8038768), (16, 5024230), (20, 4019384), (32, 2512115), (37, 2172640), (40, 2009692), (74, 1086320), (80, 1004846), (148, 543160), (160, 502423), (185, 434528), (296, 271580), (367, 219040), (370, 217264), (592, 135790), (734, 109520), (740, 108632), (1184, 67895), (1369, 58720), (1468, 54760), (1480, 54316), (1835, 43808), (2738, 29360), (2936, 27380), (2960, 27158), (3670, 21904), (5476, 14680), (5872, 13690), (5920, 13579), (6845, 11744), (7340, 10952)]