28739620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{15791}}^1$

素因数の和:15820

約数の個数: 48

約数和(自身を含む): 74285568

約数和(自身を除く): 45545948

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 15791, 31582, 63164, 78955, 110537, 157910, 205283, 221074, 315820, 410566, 442148, 552685, 821132, 1026415, 1105370, 1436981, 2052830, 2210740, 2873962, 4105660, 5747924, 7184905, 14369810, 28739620]

約数ペア:

[(1, 28739620), (2, 14369810), (4, 7184905), (5, 5747924), (7, 4105660), (10, 2873962), (13, 2210740), (14, 2052830), (20, 1436981), (26, 1105370), (28, 1026415), (35, 821132), (52, 552685), (65, 442148), (70, 410566), (91, 315820), (130, 221074), (140, 205283), (182, 157910), (260, 110537), (364, 78955), (455, 63164), (910, 31582), (1820, 15791)]