780133360

素因数分解:

$2^4\times 5^1\times {\mathrm{9751667}}^1$

素因数の和:9751680

約数の個数: 20

約数和(自身を含む): 1813810248

約数和(自身を除く): 1033676888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 9751667, 19503334, 39006668, 48758335, 78013336, 97516670, 156026672, 195033340, 390066680, 780133360]

約数ペア:

[(1, 780133360), (2, 390066680), (4, 195033340), (5, 156026672), (8, 97516670), (10, 78013336), (16, 48758335), (20, 39006668), (40, 19503334), (80, 9751667)]