2154746620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{637499}}^1$

素因数の和:637534

約数の個数: 36

約数和(自身を含む): 4899825000

約数和(自身を除く): 2745078380

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 637499, 1274998, 2549996, 3187495, 6374990, 8287487, 12749980, 16574974, 33149948, 41437435, 82874870, 107737331, 165749740, 215474662, 430949324, 538686655, 1077373310, 2154746620]

約数ペア:

[(1, 2154746620), (2, 1077373310), (4, 538686655), (5, 430949324), (10, 215474662), (13, 165749740), (20, 107737331), (26, 82874870), (52, 41437435), (65, 33149948), (130, 16574974), (169, 12749980), (260, 8287487), (338, 6374990), (676, 3187495), (845, 2549996), (1690, 1274998), (3380, 637499)]