64140220

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{24481}}^1$

素因数の和:24621

約数の個数: 24

約数和(自身を含む): 135728208

約数和(自身を除く): 71587988

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 24481, 48962, 97924, 122405, 244810, 489620, 3207011, 6414022, 12828044, 16035055, 32070110, 64140220]

約数ペア:

[(1, 64140220), (2, 32070110), (4, 16035055), (5, 12828044), (10, 6414022), (20, 3207011), (131, 489620), (262, 244810), (524, 122405), (655, 97924), (1310, 48962), (2620, 24481)]