2189200

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{421}}^1$

素因数の和:452

約数の個数: 60

約数和(自身を含む): 5677588

約数和(自身を除く): 3488388

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 400, 421, 520, 650, 842, 1040, 1300, 1684, 2105, 2600, 3368, 4210, 5200, 5473, 6736, 8420, 10525, 10946, 16840, 21050, 21892, 27365, 33680, 42100, 43784, 54730, 84200, 87568, 109460, 136825, 168400, 218920, 273650, 437840, 547300, 1094600, 2189200]

約数ペア:

[(1, 2189200), (2, 1094600), (4, 547300), (5, 437840), (8, 273650), (10, 218920), (13, 168400), (16, 136825), (20, 109460), (25, 87568), (26, 84200), (40, 54730), (50, 43784), (52, 42100), (65, 33680), (80, 27365), (100, 21892), (104, 21050), (130, 16840), (200, 10946), (208, 10525), (260, 8420), (325, 6736), (400, 5473), (421, 5200), (520, 4210), (650, 3368), (842, 2600), (1040, 2105), (1300, 1684)]