20454968450

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{397}}^1\times {\mathrm{147211}}^1$

素因数の和:147627

約数の個数: 48

約数和(自身を含む): 43591239744

約数和(自身を除く): 23136271294

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 175, 350, 397, 794, 1985, 2779, 3970, 5558, 9925, 13895, 19850, 27790, 69475, 138950, 147211, 294422, 736055, 1030477, 1472110, 2060954, 3680275, 5152385, 7360550, 10304770, 25761925, 51523850, 58442767, 116885534, 292213835, 409099369, 584427670, 818198738, 1461069175, 2045496845, 2922138350, 4090993690, 10227484225, 20454968450]

約数ペア:

[(1, 20454968450), (2, 10227484225), (5, 4090993690), (7, 2922138350), (10, 2045496845), (14, 1461069175), (25, 818198738), (35, 584427670), (50, 409099369), (70, 292213835), (175, 116885534), (350, 58442767), (397, 51523850), (794, 25761925), (1985, 10304770), (2779, 7360550), (3970, 5152385), (5558, 3680275), (9925, 2060954), (13895, 1472110), (19850, 1030477), (27790, 736055), (69475, 294422), (138950, 147211)]