18714440

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{6983}}^1$

素因数の和:7061

約数の個数: 32

約数和(自身を含む): 42742080

約数和(自身を除く): 24027640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 6983, 13966, 27932, 34915, 55864, 69830, 139660, 279320, 467861, 935722, 1871444, 2339305, 3742888, 4678610, 9357220, 18714440]

約数ペア:

[(1, 18714440), (2, 9357220), (4, 4678610), (5, 3742888), (8, 2339305), (10, 1871444), (20, 935722), (40, 467861), (67, 279320), (134, 139660), (268, 69830), (335, 55864), (536, 34915), (670, 27932), (1340, 13966), (2680, 6983)]