18971800

素因数分解:

$2^3\times 5^2\times {\mathrm{29}}^1\times {\mathrm{3271}}^1$

素因数の和:3316

約数の個数: 48

約数和(自身を含む): 45644400

約数和(自身を除く): 26672600

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 29, 40, 50, 58, 100, 116, 145, 200, 232, 290, 580, 725, 1160, 1450, 2900, 3271, 5800, 6542, 13084, 16355, 26168, 32710, 65420, 81775, 94859, 130840, 163550, 189718, 327100, 379436, 474295, 654200, 758872, 948590, 1897180, 2371475, 3794360, 4742950, 9485900, 18971800]

約数ペア:

[(1, 18971800), (2, 9485900), (4, 4742950), (5, 3794360), (8, 2371475), (10, 1897180), (20, 948590), (25, 758872), (29, 654200), (40, 474295), (50, 379436), (58, 327100), (100, 189718), (116, 163550), (145, 130840), (200, 94859), (232, 81775), (290, 65420), (580, 32710), (725, 26168), (1160, 16355), (1450, 13084), (2900, 6542), (3271, 5800)]