31023640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1061}}^1$

素因数の和:1132

約数の個数: 64

約数和(自身を含む): 75699360

約数和(自身を除く): 44675720

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 43, 68, 85, 86, 136, 170, 172, 215, 340, 344, 430, 680, 731, 860, 1061, 1462, 1720, 2122, 2924, 3655, 4244, 5305, 5848, 7310, 8488, 10610, 14620, 18037, 21220, 29240, 36074, 42440, 45623, 72148, 90185, 91246, 144296, 180370, 182492, 228115, 360740, 364984, 456230, 721480, 775591, 912460, 1551182, 1824920, 3102364, 3877955, 6204728, 7755910, 15511820, 31023640]

約数ペア:

[(1, 31023640), (2, 15511820), (4, 7755910), (5, 6204728), (8, 3877955), (10, 3102364), (17, 1824920), (20, 1551182), (34, 912460), (40, 775591), (43, 721480), (68, 456230), (85, 364984), (86, 360740), (136, 228115), (170, 182492), (172, 180370), (215, 144296), (340, 91246), (344, 90185), (430, 72148), (680, 45623), (731, 42440), (860, 36074), (1061, 29240), (1462, 21220), (1720, 18037), (2122, 14620), (2924, 10610), (3655, 8488), (4244, 7310), (5305, 5848)]