90998480

素因数分解:

$2^4\times 5^1\times {\mathrm{1137481}}^1$

素因数の和:1137494

約数の個数: 20

約数和(自身を含む): 211571652

約数和(自身を除く): 120573172

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1137481, 2274962, 4549924, 5687405, 9099848, 11374810, 18199696, 22749620, 45499240, 90998480]

約数ペア:

[(1, 90998480), (2, 45499240), (4, 22749620), (5, 18199696), (8, 11374810), (10, 9099848), (16, 5687405), (20, 4549924), (40, 2274962), (80, 1137481)]