228315620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{2179}}^1$

素因数の和:2245

約数の個数: 72

約数和(自身を含む): 536175360

約数和(自身を除く): 307859740

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 169, 260, 310, 338, 403, 620, 676, 806, 845, 1612, 1690, 2015, 2179, 3380, 4030, 4358, 5239, 8060, 8716, 10478, 10895, 20956, 21790, 26195, 28327, 43580, 52390, 56654, 67549, 104780, 113308, 135098, 141635, 270196, 283270, 337745, 368251, 566540, 675490, 736502, 878137, 1350980, 1473004, 1756274, 1841255, 3512548, 3682510, 4390685, 7365020, 8781370, 11415781, 17562740, 22831562, 45663124, 57078905, 114157810, 228315620]

約数ペア:

[(1, 228315620), (2, 114157810), (4, 57078905), (5, 45663124), (10, 22831562), (13, 17562740), (20, 11415781), (26, 8781370), (31, 7365020), (52, 4390685), (62, 3682510), (65, 3512548), (124, 1841255), (130, 1756274), (155, 1473004), (169, 1350980), (260, 878137), (310, 736502), (338, 675490), (403, 566540), (620, 368251), (676, 337745), (806, 283270), (845, 270196), (1612, 141635), (1690, 135098), (2015, 113308), (2179, 104780), (3380, 67549), (4030, 56654), (4358, 52390), (5239, 43580), (8060, 28327), (8716, 26195), (10478, 21790), (10895, 20956)]