31975880

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{241}}^1$

素因数の和:390

約数の個数: 64

約数和(自身を含む): 75271680

約数和(自身を除く): 43295800

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 107, 124, 155, 214, 241, 248, 310, 428, 482, 535, 620, 856, 964, 1070, 1205, 1240, 1928, 2140, 2410, 3317, 4280, 4820, 6634, 7471, 9640, 13268, 14942, 16585, 25787, 26536, 29884, 33170, 37355, 51574, 59768, 66340, 74710, 103148, 128935, 132680, 149420, 206296, 257870, 298840, 515740, 799397, 1031480, 1598794, 3197588, 3996985, 6395176, 7993970, 15987940, 31975880]

約数ペア:

[(1, 31975880), (2, 15987940), (4, 7993970), (5, 6395176), (8, 3996985), (10, 3197588), (20, 1598794), (31, 1031480), (40, 799397), (62, 515740), (107, 298840), (124, 257870), (155, 206296), (214, 149420), (241, 132680), (248, 128935), (310, 103148), (428, 74710), (482, 66340), (535, 59768), (620, 51574), (856, 37355), (964, 33170), (1070, 29884), (1205, 26536), (1240, 25787), (1928, 16585), (2140, 14942), (2410, 13268), (3317, 9640), (4280, 7471), (4820, 6634)]