31184720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{233}}^1\times {\mathrm{239}}^1$

素因数の和:492

約数の個数: 80

約数和(自身を含む): 83566080

約数和(自身を除く): 52381360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 233, 239, 280, 466, 478, 560, 932, 956, 1165, 1195, 1631, 1673, 1864, 1912, 2330, 2390, 3262, 3346, 3728, 3824, 4660, 4780, 6524, 6692, 8155, 8365, 9320, 9560, 13048, 13384, 16310, 16730, 18640, 19120, 26096, 26768, 32620, 33460, 55687, 65240, 66920, 111374, 130480, 133840, 222748, 278435, 389809, 445496, 556870, 779618, 890992, 1113740, 1559236, 1949045, 2227480, 3118472, 3898090, 4454960, 6236944, 7796180, 15592360, 31184720]

約数ペア:

[(1, 31184720), (2, 15592360), (4, 7796180), (5, 6236944), (7, 4454960), (8, 3898090), (10, 3118472), (14, 2227480), (16, 1949045), (20, 1559236), (28, 1113740), (35, 890992), (40, 779618), (56, 556870), (70, 445496), (80, 389809), (112, 278435), (140, 222748), (233, 133840), (239, 130480), (280, 111374), (466, 66920), (478, 65240), (560, 55687), (932, 33460), (956, 32620), (1165, 26768), (1195, 26096), (1631, 19120), (1673, 18640), (1864, 16730), (1912, 16310), (2330, 13384), (2390, 13048), (3262, 9560), (3346, 9320), (3728, 8365), (3824, 8155), (4660, 6692), (4780, 6524)]