79662020

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1\times {\mathrm{397}}^1$

素因数の和:612

約数の個数: 48

約数和(自身を含む): 171171840

約数和(自身を除く): 91509820

約数列:

[1, 2, 4, 5, 10, 20, 79, 127, 158, 254, 316, 395, 397, 508, 635, 790, 794, 1270, 1580, 1588, 1985, 2540, 3970, 7940, 10033, 20066, 31363, 40132, 50165, 50419, 62726, 100330, 100838, 125452, 156815, 200660, 201676, 252095, 313630, 504190, 627260, 1008380, 3983101, 7966202, 15932404, 19915505, 39831010, 79662020]

約数ペア:

[(1, 79662020), (2, 39831010), (4, 19915505), (5, 15932404), (10, 7966202), (20, 3983101), (79, 1008380), (127, 627260), (158, 504190), (254, 313630), (316, 252095), (395, 201676), (397, 200660), (508, 156815), (635, 125452), (790, 100838), (794, 100330), (1270, 62726), (1580, 50419), (1588, 50165), (1985, 40132), (2540, 31363), (3970, 20066), (7940, 10033)]