28599280

素因数分解:

$2^4\times 5^1\times {\mathrm{389}}^1\times {\mathrm{919}}^1$

素因数の和:1321

約数の個数: 40

約数和(自身を含む): 66736800

約数和(自身を除く): 38137520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 389, 778, 919, 1556, 1838, 1945, 3112, 3676, 3890, 4595, 6224, 7352, 7780, 9190, 14704, 15560, 18380, 31120, 36760, 73520, 357491, 714982, 1429964, 1787455, 2859928, 3574910, 5719856, 7149820, 14299640, 28599280]

約数ペア:

[(1, 28599280), (2, 14299640), (4, 7149820), (5, 5719856), (8, 3574910), (10, 2859928), (16, 1787455), (20, 1429964), (40, 714982), (80, 357491), (389, 73520), (778, 36760), (919, 31120), (1556, 18380), (1838, 15560), (1945, 14704), (3112, 9190), (3676, 7780), (3890, 7352), (4595, 6224)]