20631510

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{25471}}^1$

素因数の和:25490

約数の個数: 40

約数和(自身を含む): 55478016

約数和(自身を除く): 34846506

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810, 25471, 50942, 76413, 127355, 152826, 229239, 254710, 382065, 458478, 687717, 764130, 1146195, 1375434, 2063151, 2292390, 3438585, 4126302, 6877170, 10315755, 20631510]

約数ペア:

[(1, 20631510), (2, 10315755), (3, 6877170), (5, 4126302), (6, 3438585), (9, 2292390), (10, 2063151), (15, 1375434), (18, 1146195), (27, 764130), (30, 687717), (45, 458478), (54, 382065), (81, 254710), (90, 229239), (135, 152826), (162, 127355), (270, 76413), (405, 50942), (810, 25471)]