128198140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{19483}}^1$

素因数の和:19546

約数の個数: 48

約数和(自身を含む): 314237952

約数和(自身を除く): 186039812

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 94, 140, 188, 235, 329, 470, 658, 940, 1316, 1645, 3290, 6580, 19483, 38966, 77932, 97415, 136381, 194830, 272762, 389660, 545524, 681905, 915701, 1363810, 1831402, 2727620, 3662804, 4578505, 6409907, 9157010, 12819814, 18314020, 25639628, 32049535, 64099070, 128198140]

約数ペア:

[(1, 128198140), (2, 64099070), (4, 32049535), (5, 25639628), (7, 18314020), (10, 12819814), (14, 9157010), (20, 6409907), (28, 4578505), (35, 3662804), (47, 2727620), (70, 1831402), (94, 1363810), (140, 915701), (188, 681905), (235, 545524), (329, 389660), (470, 272762), (658, 194830), (940, 136381), (1316, 97415), (1645, 77932), (3290, 38966), (6580, 19483)]