201721940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{13219}}^1$

素因数の和:13344

約数の個数: 48

約数和(自身を含む): 488611200

約数和(自身を除く): 286889260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 109, 140, 218, 436, 545, 763, 1090, 1526, 2180, 3052, 3815, 7630, 13219, 15260, 26438, 52876, 66095, 92533, 132190, 185066, 264380, 370132, 462665, 925330, 1440871, 1850660, 2881742, 5763484, 7204355, 10086097, 14408710, 20172194, 28817420, 40344388, 50430485, 100860970, 201721940]

約数ペア:

[(1, 201721940), (2, 100860970), (4, 50430485), (5, 40344388), (7, 28817420), (10, 20172194), (14, 14408710), (20, 10086097), (28, 7204355), (35, 5763484), (70, 2881742), (109, 1850660), (140, 1440871), (218, 925330), (436, 462665), (545, 370132), (763, 264380), (1090, 185066), (1526, 132190), (2180, 92533), (3052, 66095), (3815, 52876), (7630, 26438), (13219, 15260)]