208437580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{801683}}^1$

素因数の和:801705

約数の個数: 24

約数和(自身を含む): 471390192

約数和(自身を除く): 262952612

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 801683, 1603366, 3206732, 4008415, 8016830, 10421879, 16033660, 20843758, 41687516, 52109395, 104218790, 208437580]

約数ペア:

[(1, 208437580), (2, 104218790), (4, 52109395), (5, 41687516), (10, 20843758), (13, 16033660), (20, 10421879), (26, 8016830), (52, 4008415), (65, 3206732), (130, 1603366), (260, 801683)]