40098320

素因数分解:

$2^4\times 5^1\times {\mathrm{501229}}^1$

素因数の和:501242

約数の個数: 20

約数和(自身を含む): 93228780

約数和(自身を除く): 53130460

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 501229, 1002458, 2004916, 2506145, 4009832, 5012290, 8019664, 10024580, 20049160, 40098320]

約数ペア:

[(1, 40098320), (2, 20049160), (4, 10024580), (5, 8019664), (8, 5012290), (10, 4009832), (16, 2506145), (20, 2004916), (40, 1002458), (80, 501229)]