66291640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{193}}^1\times {\mathrm{277}}^1$

素因数の和:512

約数の個数: 64

約数和(自身を含む): 155324160

約数和(自身を除く): 89032520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 193, 248, 277, 310, 386, 554, 620, 772, 965, 1108, 1240, 1385, 1544, 1930, 2216, 2770, 3860, 5540, 5983, 7720, 8587, 11080, 11966, 17174, 23932, 29915, 34348, 42935, 47864, 53461, 59830, 68696, 85870, 106922, 119660, 171740, 213844, 239320, 267305, 343480, 427688, 534610, 1069220, 1657291, 2138440, 3314582, 6629164, 8286455, 13258328, 16572910, 33145820, 66291640]

約数ペア:

[(1, 66291640), (2, 33145820), (4, 16572910), (5, 13258328), (8, 8286455), (10, 6629164), (20, 3314582), (31, 2138440), (40, 1657291), (62, 1069220), (124, 534610), (155, 427688), (193, 343480), (248, 267305), (277, 239320), (310, 213844), (386, 171740), (554, 119660), (620, 106922), (772, 85870), (965, 68696), (1108, 59830), (1240, 53461), (1385, 47864), (1544, 42935), (1930, 34348), (2216, 29915), (2770, 23932), (3860, 17174), (5540, 11966), (5983, 11080), (7720, 8587)]