518480

素因数分解:

$2^4\times 5^1\times {\mathrm{6481}}^1$

素因数の和:6494

約数の個数: 20

約数和(自身を含む): 1205652

約数和(自身を除く): 687172

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 6481, 12962, 25924, 32405, 51848, 64810, 103696, 129620, 259240, 518480]

約数ペア:

[(1, 518480), (2, 259240), (4, 129620), (5, 103696), (8, 64810), (10, 51848), (16, 32405), (20, 25924), (40, 12962), (80, 6481)]