16804948280

素因数分解:

$2^3\times 5^1\times {\mathrm{420123707}}^1$

素因数の和:420123718

約数の個数: 16

約数和(自身を含む): 37811133720

約数和(自身を除く): 21006185440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 420123707, 840247414, 1680494828, 2100618535, 3360989656, 4201237070, 8402474140, 16804948280]

約数ペア:

[(1, 16804948280), (2, 8402474140), (4, 4201237070), (5, 3360989656), (8, 2100618535), (10, 1680494828), (20, 840247414), (40, 420123707)]