20148180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{1987}}^1$

素因数の和:2025

約数の個数: 72

約数和(自身を含む): 61119072

約数和(自身を除く): 40970892

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 169, 195, 260, 338, 390, 507, 676, 780, 845, 1014, 1690, 1987, 2028, 2535, 3380, 3974, 5070, 5961, 7948, 9935, 10140, 11922, 19870, 23844, 25831, 29805, 39740, 51662, 59610, 77493, 103324, 119220, 129155, 154986, 258310, 309972, 335803, 387465, 516620, 671606, 774930, 1007409, 1343212, 1549860, 1679015, 2014818, 3358030, 4029636, 5037045, 6716060, 10074090, 20148180]

約数ペア:

[(1, 20148180), (2, 10074090), (3, 6716060), (4, 5037045), (5, 4029636), (6, 3358030), (10, 2014818), (12, 1679015), (13, 1549860), (15, 1343212), (20, 1007409), (26, 774930), (30, 671606), (39, 516620), (52, 387465), (60, 335803), (65, 309972), (78, 258310), (130, 154986), (156, 129155), (169, 119220), (195, 103324), (260, 77493), (338, 59610), (390, 51662), (507, 39740), (676, 29805), (780, 25831), (845, 23844), (1014, 19870), (1690, 11922), (1987, 10140), (2028, 9935), (2535, 7948), (3380, 5961), (3974, 5070)]