18578450

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1987}}^1$

素因数の和:2027

約数の個数: 48

約数和(自身を含む): 39934944

約数和(自身を除く): 21356494

約数列:

[1, 2, 5, 10, 11, 17, 22, 25, 34, 50, 55, 85, 110, 170, 187, 275, 374, 425, 550, 850, 935, 1870, 1987, 3974, 4675, 9350, 9935, 19870, 21857, 33779, 43714, 49675, 67558, 99350, 109285, 168895, 218570, 337790, 371569, 546425, 743138, 844475, 1092850, 1688950, 1857845, 3715690, 9289225, 18578450]

約数ペア:

[(1, 18578450), (2, 9289225), (5, 3715690), (10, 1857845), (11, 1688950), (17, 1092850), (22, 844475), (25, 743138), (34, 546425), (50, 371569), (55, 337790), (85, 218570), (110, 168895), (170, 109285), (187, 99350), (275, 67558), (374, 49675), (425, 43714), (550, 33779), (850, 21857), (935, 19870), (1870, 9935), (1987, 9350), (3974, 4675)]