15128620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1877}}^1$

素因数の和:1930

約数の個数: 48

約数和(自身を含む): 35336448

約数和(自身を除く): 20207828

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 1877, 2015, 3754, 4030, 7508, 8060, 9385, 18770, 24401, 37540, 48802, 58187, 97604, 116374, 122005, 232748, 244010, 290935, 488020, 581870, 756431, 1163740, 1512862, 3025724, 3782155, 7564310, 15128620]

約数ペア:

[(1, 15128620), (2, 7564310), (4, 3782155), (5, 3025724), (10, 1512862), (13, 1163740), (20, 756431), (26, 581870), (31, 488020), (52, 290935), (62, 244010), (65, 232748), (124, 122005), (130, 116374), (155, 97604), (260, 58187), (310, 48802), (403, 37540), (620, 24401), (806, 18770), (1612, 9385), (1877, 8060), (2015, 7508), (3754, 4030)]