937509980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{47881}}^1$

素因数の和:47990

約数の個数: 48

約数和(自身を含む): 2171927520

約数和(自身を除く): 1234417540

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 89, 110, 178, 220, 356, 445, 890, 979, 1780, 1958, 3916, 4895, 9790, 19580, 47881, 95762, 191524, 239405, 478810, 526691, 957620, 1053382, 2106764, 2633455, 4261409, 5266910, 8522818, 10533820, 17045636, 21307045, 42614090, 46875499, 85228180, 93750998, 187501996, 234377495, 468754990, 937509980]

約数ペア:

[(1, 937509980), (2, 468754990), (4, 234377495), (5, 187501996), (10, 93750998), (11, 85228180), (20, 46875499), (22, 42614090), (44, 21307045), (55, 17045636), (89, 10533820), (110, 8522818), (178, 5266910), (220, 4261409), (356, 2633455), (445, 2106764), (890, 1053382), (979, 957620), (1780, 526691), (1958, 478810), (3916, 239405), (4895, 191524), (9790, 95762), (19580, 47881)]