31237840

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{223}}^1$

素因数の和:356

約数の個数: 80

約数和(自身を含む): 77995008

約数和(自身を除く): 46757168

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 103, 136, 170, 206, 223, 272, 340, 412, 446, 515, 680, 824, 892, 1030, 1115, 1360, 1648, 1751, 1784, 2060, 2230, 3502, 3568, 3791, 4120, 4460, 7004, 7582, 8240, 8755, 8920, 14008, 15164, 17510, 17840, 18955, 22969, 28016, 30328, 35020, 37910, 45938, 60656, 70040, 75820, 91876, 114845, 140080, 151640, 183752, 229690, 303280, 367504, 390473, 459380, 780946, 918760, 1561892, 1837520, 1952365, 3123784, 3904730, 6247568, 7809460, 15618920, 31237840]

約数ペア:

[(1, 31237840), (2, 15618920), (4, 7809460), (5, 6247568), (8, 3904730), (10, 3123784), (16, 1952365), (17, 1837520), (20, 1561892), (34, 918760), (40, 780946), (68, 459380), (80, 390473), (85, 367504), (103, 303280), (136, 229690), (170, 183752), (206, 151640), (223, 140080), (272, 114845), (340, 91876), (412, 75820), (446, 70040), (515, 60656), (680, 45938), (824, 37910), (892, 35020), (1030, 30328), (1115, 28016), (1360, 22969), (1648, 18955), (1751, 17840), (1784, 17510), (2060, 15164), (2230, 14008), (3502, 8920), (3568, 8755), (3791, 8240), (4120, 7582), (4460, 7004)]