78221960

素因数分解:

$2^3\times 5^1\times {\mathrm{1151}}^1\times {\mathrm{1699}}^1$

素因数の和:2861

約数の個数: 32

約数和(自身を含む): 176256000

約数和(自身を除く): 98034040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1151, 1699, 2302, 3398, 4604, 5755, 6796, 8495, 9208, 11510, 13592, 16990, 23020, 33980, 46040, 67960, 1955549, 3911098, 7822196, 9777745, 15644392, 19555490, 39110980, 78221960]

約数ペア:

[(1, 78221960), (2, 39110980), (4, 19555490), (5, 15644392), (8, 9777745), (10, 7822196), (20, 3911098), (40, 1955549), (1151, 67960), (1699, 46040), (2302, 33980), (3398, 23020), (4604, 16990), (5755, 13592), (6796, 11510), (8495, 9208)]