217434680

素因数分解:

$2^3\times 5^1\times {\mathrm{1229}}^1\times {\mathrm{4423}}^1$

素因数の和:5663

約数の個数: 32

約数和(自身を含む): 489736800

約数和(自身を除く): 272302120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1229, 2458, 4423, 4916, 6145, 8846, 9832, 12290, 17692, 22115, 24580, 35384, 44230, 49160, 88460, 176920, 5435867, 10871734, 21743468, 27179335, 43486936, 54358670, 108717340, 217434680]

約数ペア:

[(1, 217434680), (2, 108717340), (4, 54358670), (5, 43486936), (8, 27179335), (10, 21743468), (20, 10871734), (40, 5435867), (1229, 176920), (2458, 88460), (4423, 49160), (4916, 44230), (6145, 35384), (8846, 24580), (9832, 22115), (12290, 17692)]