90006020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{859}}^1$

素因数の和:925

約数の個数: 72

約数和(自身を含む): 211518720

約数和(自身を除く): 121512700

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, 859, 1612, 1690, 1718, 2015, 3380, 3436, 4030, 4295, 5239, 8060, 8590, 10478, 11167, 17180, 20956, 22334, 26195, 26629, 44668, 52390, 53258, 55835, 104780, 106516, 111670, 133145, 145171, 223340, 266290, 290342, 346177, 532580, 580684, 692354, 725855, 1384708, 1451710, 1730885, 2903420, 3461770, 4500301, 6923540, 9000602, 18001204, 22501505, 45003010, 90006020]

約数ペア:

[(1, 90006020), (2, 45003010), (4, 22501505), (5, 18001204), (10, 9000602), (13, 6923540), (20, 4500301), (26, 3461770), (31, 2903420), (52, 1730885), (62, 1451710), (65, 1384708), (124, 725855), (130, 692354), (155, 580684), (169, 532580), (260, 346177), (310, 290342), (338, 266290), (403, 223340), (620, 145171), (676, 133145), (806, 111670), (845, 106516), (859, 104780), (1612, 55835), (1690, 53258), (1718, 52390), (2015, 44668), (3380, 26629), (3436, 26195), (4030, 22334), (4295, 20956), (5239, 17180), (8060, 11167), (8590, 10478)]