81505310

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{5387}}^1$

素因数の和:5500

約数の個数: 32

約数和(自身を含む): 157114080

約数和(自身を除く): 75608770

約数列:

[1, 2, 5, 10, 17, 34, 85, 89, 170, 178, 445, 890, 1513, 3026, 5387, 7565, 10774, 15130, 26935, 53870, 91579, 183158, 457895, 479443, 915790, 958886, 2397215, 4794430, 8150531, 16301062, 40752655, 81505310]

約数ペア:

[(1, 81505310), (2, 40752655), (5, 16301062), (10, 8150531), (17, 4794430), (34, 2397215), (85, 958886), (89, 915790), (170, 479443), (178, 457895), (445, 183158), (890, 91579), (1513, 53870), (3026, 26935), (5387, 15130), (7565, 10774)]