987870147280

素因数分解:

$2^4\times 5^1\times {\mathrm{12348376841}}^1$

素因数の和:12348376854

約数の個数: 20

約数和(自身を含む): 2296798092612

約数和(自身を除く): 1308927945332

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 12348376841, 24696753682, 49393507364, 61741884205, 98787014728, 123483768410, 197574029456, 246967536820, 493935073640, 987870147280]

約数ペア:

[(1, 987870147280), (2, 493935073640), (4, 246967536820), (5, 197574029456), (8, 123483768410), (10, 98787014728), (16, 61741884205), (20, 49393507364), (40, 24696753682), (80, 12348376841)]