1820043640

素因数分解:

$2^3\times 5^1\times {\mathrm{5639}}^1\times {\mathrm{8069}}^1$

素因数の和:13719

約数の個数: 32

約数和(自身を含む): 4096332000

約数和(自身を除く): 2276288360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5639, 8069, 11278, 16138, 22556, 28195, 32276, 40345, 45112, 56390, 64552, 80690, 112780, 161380, 225560, 322760, 45501091, 91002182, 182004364, 227505455, 364008728, 455010910, 910021820, 1820043640]

約数ペア:

[(1, 1820043640), (2, 910021820), (4, 455010910), (5, 364008728), (8, 227505455), (10, 182004364), (20, 91002182), (40, 45501091), (5639, 322760), (8069, 225560), (11278, 161380), (16138, 112780), (22556, 80690), (28195, 64552), (32276, 56390), (40345, 45112)]