8761220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1087}}^1$

素因数の和:1140

約数の個数: 48

約数和(自身を含む): 20471808

約数和(自身を除く): 11710588

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1087, 1612, 2015, 2174, 4030, 4348, 5435, 8060, 10870, 14131, 21740, 28262, 33697, 56524, 67394, 70655, 134788, 141310, 168485, 282620, 336970, 438061, 673940, 876122, 1752244, 2190305, 4380610, 8761220]

約数ペア:

[(1, 8761220), (2, 4380610), (4, 2190305), (5, 1752244), (10, 876122), (13, 673940), (20, 438061), (26, 336970), (31, 282620), (52, 168485), (62, 141310), (65, 134788), (124, 70655), (130, 67394), (155, 56524), (260, 33697), (310, 28262), (403, 21740), (620, 14131), (806, 10870), (1087, 8060), (1612, 5435), (2015, 4348), (2174, 4030)]