16728400

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{3217}}^1$

素因数の和:3248

約数の個数: 60

約数和(自身を含む): 43294972

約数和(自身を除く): 26566572

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, 520, 650, 1040, 1300, 2600, 3217, 5200, 6434, 12868, 16085, 25736, 32170, 41821, 51472, 64340, 80425, 83642, 128680, 160850, 167284, 209105, 257360, 321700, 334568, 418210, 643400, 669136, 836420, 1045525, 1286800, 1672840, 2091050, 3345680, 4182100, 8364200, 16728400]

約数ペア:

[(1, 16728400), (2, 8364200), (4, 4182100), (5, 3345680), (8, 2091050), (10, 1672840), (13, 1286800), (16, 1045525), (20, 836420), (25, 669136), (26, 643400), (40, 418210), (50, 334568), (52, 321700), (65, 257360), (80, 209105), (100, 167284), (104, 160850), (130, 128680), (200, 83642), (208, 80425), (260, 64340), (325, 51472), (400, 41821), (520, 32170), (650, 25736), (1040, 16085), (1300, 12868), (2600, 6434), (3217, 5200)]