222624800

素因数分解:

$2^5\times 5^2\times {\mathrm{421}}^1\times {\mathrm{661}}^1$

素因数の和:1102

約数の個数: 72

約数和(自身を含む): 545597892

約数和(自身を除く): 322973092

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 421, 661, 800, 842, 1322, 1684, 2105, 2644, 3305, 3368, 4210, 5288, 6610, 6736, 8420, 10525, 10576, 13220, 13472, 16525, 16840, 21050, 21152, 26440, 33050, 33680, 42100, 52880, 66100, 67360, 84200, 105760, 132200, 168400, 264400, 278281, 336800, 528800, 556562, 1113124, 1391405, 2226248, 2782810, 4452496, 5565620, 6957025, 8904992, 11131240, 13914050, 22262480, 27828100, 44524960, 55656200, 111312400, 222624800]

約数ペア:

[(1, 222624800), (2, 111312400), (4, 55656200), (5, 44524960), (8, 27828100), (10, 22262480), (16, 13914050), (20, 11131240), (25, 8904992), (32, 6957025), (40, 5565620), (50, 4452496), (80, 2782810), (100, 2226248), (160, 1391405), (200, 1113124), (400, 556562), (421, 528800), (661, 336800), (800, 278281), (842, 264400), (1322, 168400), (1684, 132200), (2105, 105760), (2644, 84200), (3305, 67360), (3368, 66100), (4210, 52880), (5288, 42100), (6610, 33680), (6736, 33050), (8420, 26440), (10525, 21152), (10576, 21050), (13220, 16840), (13472, 16525)]