67528400

素因数分解:

$2^4\times 5^2\times {\mathrm{401}}^1\times {\mathrm{421}}^1$

素因数の和:840

約数の個数: 60

約数和(自身を含む): 163027884

約数和(自身を除く): 95499484

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 401, 421, 802, 842, 1604, 1684, 2005, 2105, 3208, 3368, 4010, 4210, 6416, 6736, 8020, 8420, 10025, 10525, 16040, 16840, 20050, 21050, 32080, 33680, 40100, 42100, 80200, 84200, 160400, 168400, 168821, 337642, 675284, 844105, 1350568, 1688210, 2701136, 3376420, 4220525, 6752840, 8441050, 13505680, 16882100, 33764200, 67528400]

約数ペア:

[(1, 67528400), (2, 33764200), (4, 16882100), (5, 13505680), (8, 8441050), (10, 6752840), (16, 4220525), (20, 3376420), (25, 2701136), (40, 1688210), (50, 1350568), (80, 844105), (100, 675284), (200, 337642), (400, 168821), (401, 168400), (421, 160400), (802, 84200), (842, 80200), (1604, 42100), (1684, 40100), (2005, 33680), (2105, 32080), (3208, 21050), (3368, 20050), (4010, 16840), (4210, 16040), (6416, 10525), (6736, 10025), (8020, 8420)]