20671070

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:225

約数の個数: 64

約数和(自身を含む): 44568576

約数和(自身を除く): 23897506

約数列:

[1, 2, 5, 7, 10, 14, 35, 47, 61, 70, 94, 103, 122, 206, 235, 305, 329, 427, 470, 515, 610, 658, 721, 854, 1030, 1442, 1645, 2135, 2867, 3290, 3605, 4270, 4841, 5734, 6283, 7210, 9682, 12566, 14335, 20069, 24205, 28670, 31415, 33887, 40138, 43981, 48410, 62830, 67774, 87962, 100345, 169435, 200690, 219905, 295301, 338870, 439810, 590602, 1476505, 2067107, 2953010, 4134214, 10335535, 20671070]

約数ペア:

[(1, 20671070), (2, 10335535), (5, 4134214), (7, 2953010), (10, 2067107), (14, 1476505), (35, 590602), (47, 439810), (61, 338870), (70, 295301), (94, 219905), (103, 200690), (122, 169435), (206, 100345), (235, 87962), (305, 67774), (329, 62830), (427, 48410), (470, 43981), (515, 40138), (610, 33887), (658, 31415), (721, 28670), (854, 24205), (1030, 20069), (1442, 14335), (1645, 12566), (2135, 9682), (2867, 7210), (3290, 6283), (3605, 5734), (4270, 4841)]