8200240

素因数分解:

$2^4\times 5^1\times {\mathrm{102503}}^1$

素因数の和:102516

約数の個数: 20

約数和(自身を含む): 19065744

約数和(自身を除く): 10865504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 102503, 205006, 410012, 512515, 820024, 1025030, 1640048, 2050060, 4100120, 8200240]

約数ペア:

[(1, 8200240), (2, 4100120), (4, 2050060), (5, 1640048), (8, 1025030), (10, 820024), (16, 512515), (20, 410012), (40, 205006), (80, 102503)]