77211320

素因数分解:

$2^3\times 5^1\times {\mathrm{439}}^1\times {\mathrm{4397}}^1$

素因数の和:4847

約数の個数: 32

約数和(自身を含む): 174160800

約数和(自身を除く): 96949480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 439, 878, 1756, 2195, 3512, 4390, 4397, 8780, 8794, 17560, 17588, 21985, 35176, 43970, 87940, 175880, 1930283, 3860566, 7721132, 9651415, 15442264, 19302830, 38605660, 77211320]

約数ペア:

[(1, 77211320), (2, 38605660), (4, 19302830), (5, 15442264), (8, 9651415), (10, 7721132), (20, 3860566), (40, 1930283), (439, 175880), (878, 87940), (1756, 43970), (2195, 35176), (3512, 21985), (4390, 17588), (4397, 17560), (8780, 8794)]