18651760

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^2\times {\mathrm{83}}^1$

素因数の和:202

約数の個数: 60

約数和(自身を含む): 44731512

約数和(自身を除く): 26079752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 83, 106, 166, 212, 265, 332, 415, 424, 530, 664, 830, 848, 1060, 1328, 1660, 2120, 2809, 3320, 4240, 4399, 5618, 6640, 8798, 11236, 14045, 17596, 21995, 22472, 28090, 35192, 43990, 44944, 56180, 70384, 87980, 112360, 175960, 224720, 233147, 351920, 466294, 932588, 1165735, 1865176, 2331470, 3730352, 4662940, 9325880, 18651760]

約数ペア:

[(1, 18651760), (2, 9325880), (4, 4662940), (5, 3730352), (8, 2331470), (10, 1865176), (16, 1165735), (20, 932588), (40, 466294), (53, 351920), (80, 233147), (83, 224720), (106, 175960), (166, 112360), (212, 87980), (265, 70384), (332, 56180), (415, 44944), (424, 43990), (530, 35192), (664, 28090), (830, 22472), (848, 21995), (1060, 17596), (1328, 14045), (1660, 11236), (2120, 8798), (2809, 6640), (3320, 5618), (4240, 4399)]