123780760

素因数分解:

$2^3\times 5^1\times {\mathrm{331}}^1\times {\mathrm{9349}}^1$

素因数の和:9691

約数の個数: 32

約数和(自身を含む): 279378000

約数和(自身を除く): 155597240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 331, 662, 1324, 1655, 2648, 3310, 6620, 9349, 13240, 18698, 37396, 46745, 74792, 93490, 186980, 373960, 3094519, 6189038, 12378076, 15472595, 24756152, 30945190, 61890380, 123780760]

約数ペア:

[(1, 123780760), (2, 61890380), (4, 30945190), (5, 24756152), (8, 15472595), (10, 12378076), (20, 6189038), (40, 3094519), (331, 373960), (662, 186980), (1324, 93490), (1655, 74792), (2648, 46745), (3310, 37396), (6620, 18698), (9349, 13240)]