100978480

素因数分解:

$2^4\times 5^1\times {\mathrm{1262231}}^1$

素因数の和:1262244

約数の個数: 20

約数和(自身を含む): 234775152

約数和(自身を除く): 133796672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1262231, 2524462, 5048924, 6311155, 10097848, 12622310, 20195696, 25244620, 50489240, 100978480]

約数ペア:

[(1, 100978480), (2, 50489240), (4, 25244620), (5, 20195696), (8, 12622310), (10, 10097848), (16, 6311155), (20, 5048924), (40, 2524462), (80, 1262231)]