18126520

素因数分解:

$2^3\times 5^1\times {\mathrm{461}}^1\times {\mathrm{983}}^1$

素因数の和:1455

約数の個数: 32

約数和(自身を含む): 40914720

約数和(自身を除く): 22788200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 461, 922, 983, 1844, 1966, 2305, 3688, 3932, 4610, 4915, 7864, 9220, 9830, 18440, 19660, 39320, 453163, 906326, 1812652, 2265815, 3625304, 4531630, 9063260, 18126520]

約数ペア:

[(1, 18126520), (2, 9063260), (4, 4531630), (5, 3625304), (8, 2265815), (10, 1812652), (20, 906326), (40, 453163), (461, 39320), (922, 19660), (983, 18440), (1844, 9830), (1966, 9220), (2305, 7864), (3688, 4915), (3932, 4610)]