128945940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{30269}}^1$

素因数の和:30352

約数の個数: 48

約数和(自身を含む): 366145920

約数和(自身を除く): 237199980

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 71, 142, 213, 284, 355, 426, 710, 852, 1065, 1420, 2130, 4260, 30269, 60538, 90807, 121076, 151345, 181614, 302690, 363228, 454035, 605380, 908070, 1816140, 2149099, 4298198, 6447297, 8596396, 10745495, 12894594, 21490990, 25789188, 32236485, 42981980, 64472970, 128945940]

約数ペア:

[(1, 128945940), (2, 64472970), (3, 42981980), (4, 32236485), (5, 25789188), (6, 21490990), (10, 12894594), (12, 10745495), (15, 8596396), (20, 6447297), (30, 4298198), (60, 2149099), (71, 1816140), (142, 908070), (213, 605380), (284, 454035), (355, 363228), (426, 302690), (710, 181614), (852, 151345), (1065, 121076), (1420, 90807), (2130, 60538), (4260, 30269)]