201718480

素因数分解:

$2^4\times 5^1\times {\mathrm{2521481}}^1$

素因数の和:2521494

約数の個数: 20

約数和(自身を含む): 468995652

約数和(自身を除く): 267277172

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2521481, 5042962, 10085924, 12607405, 20171848, 25214810, 40343696, 50429620, 100859240, 201718480]

約数ペア:

[(1, 201718480), (2, 100859240), (4, 50429620), (5, 40343696), (8, 25214810), (10, 20171848), (16, 12607405), (20, 10085924), (40, 5042962), (80, 2521481)]