201638480

素因数分解:

$2^4\times 5^1\times {\mathrm{2520481}}^1$

素因数の和:2520494

約数の個数: 20

約数和(自身を含む): 468809652

約数和(自身を除く): 267171172

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2520481, 5040962, 10081924, 12602405, 20163848, 25204810, 40327696, 50409620, 100819240, 201638480]

約数ペア:

[(1, 201638480), (2, 100819240), (4, 50409620), (5, 40327696), (8, 25204810), (10, 20163848), (16, 12602405), (20, 10081924), (40, 5040962), (80, 2520481)]