16840240

素因数分解:

$2^4\times 5^1\times {\mathrm{181}}^1\times {\mathrm{1163}}^1$

素因数の和:1357

約数の個数: 40

約数和(自身を含む): 39403728

約数和(自身を除く): 22563488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 181, 362, 724, 905, 1163, 1448, 1810, 2326, 2896, 3620, 4652, 5815, 7240, 9304, 11630, 14480, 18608, 23260, 46520, 93040, 210503, 421006, 842012, 1052515, 1684024, 2105030, 3368048, 4210060, 8420120, 16840240]

約数ペア:

[(1, 16840240), (2, 8420120), (4, 4210060), (5, 3368048), (8, 2105030), (10, 1684024), (16, 1052515), (20, 842012), (40, 421006), (80, 210503), (181, 93040), (362, 46520), (724, 23260), (905, 18608), (1163, 14480), (1448, 11630), (1810, 9304), (2326, 7240), (2896, 5815), (3620, 4652)]