20578980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{11827}}^1$

素因数の和:11868

約数の個数: 48

約数和(自身を含む): 59613120

約数和(自身を除く): 39034140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 58, 60, 87, 116, 145, 174, 290, 348, 435, 580, 870, 1740, 11827, 23654, 35481, 47308, 59135, 70962, 118270, 141924, 177405, 236540, 342983, 354810, 685966, 709620, 1028949, 1371932, 1714915, 2057898, 3429830, 4115796, 5144745, 6859660, 10289490, 20578980]

約数ペア:

[(1, 20578980), (2, 10289490), (3, 6859660), (4, 5144745), (5, 4115796), (6, 3429830), (10, 2057898), (12, 1714915), (15, 1371932), (20, 1028949), (29, 709620), (30, 685966), (58, 354810), (60, 342983), (87, 236540), (116, 177405), (145, 141924), (174, 118270), (290, 70962), (348, 59135), (435, 47308), (580, 35481), (870, 23654), (1740, 11827)]