318361940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{39499}}^1$

素因数の和:39552

約数の個数: 48

約数和(自身を含む): 743232000

約数和(自身を除く): 424870060

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 4030, 8060, 39499, 78998, 157996, 197495, 394990, 513487, 789980, 1026974, 1224469, 2053948, 2448938, 2567435, 4897876, 5134870, 6122345, 10269740, 12244690, 15918097, 24489380, 31836194, 63672388, 79590485, 159180970, 318361940]

約数ペア:

[(1, 318361940), (2, 159180970), (4, 79590485), (5, 63672388), (10, 31836194), (13, 24489380), (20, 15918097), (26, 12244690), (31, 10269740), (52, 6122345), (62, 5134870), (65, 4897876), (124, 2567435), (130, 2448938), (155, 2053948), (260, 1224469), (310, 1026974), (403, 789980), (620, 513487), (806, 394990), (1612, 197495), (2015, 157996), (4030, 78998), (8060, 39499)]