31564240

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23209}}^1$

素因数の和:23239

約数の個数: 40

約数和(自身を含む): 77707080

約数和(自身を除く): 46142840

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 23209, 46418, 92836, 116045, 185672, 232090, 371344, 394553, 464180, 789106, 928360, 1578212, 1856720, 1972765, 3156424, 3945530, 6312848, 7891060, 15782120, 31564240]

約数ペア:

[(1, 31564240), (2, 15782120), (4, 7891060), (5, 6312848), (8, 3945530), (10, 3156424), (16, 1972765), (17, 1856720), (20, 1578212), (34, 928360), (40, 789106), (68, 464180), (80, 394553), (85, 371344), (136, 232090), (170, 185672), (272, 116045), (340, 92836), (680, 46418), (1360, 23209)]