30841640

素因数分解:

$2^3\times 5^1\times {\mathrm{839}}^1\times {\mathrm{919}}^1$

素因数の和:1769

約数の個数: 32

約数和(自身を含む): 69552000

約数和(自身を除く): 38710360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 839, 919, 1678, 1838, 3356, 3676, 4195, 4595, 6712, 7352, 8390, 9190, 16780, 18380, 33560, 36760, 771041, 1542082, 3084164, 3855205, 6168328, 7710410, 15420820, 30841640]

約数ペア:

[(1, 30841640), (2, 15420820), (4, 7710410), (5, 6168328), (8, 3855205), (10, 3084164), (20, 1542082), (40, 771041), (839, 36760), (919, 33560), (1678, 18380), (1838, 16780), (3356, 9190), (3676, 8390), (4195, 7352), (4595, 6712)]