25420820

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{1069}}^1$

素因数の和:1148

約数の個数: 48

約数和(自身を含む): 56624400

約数和(自身を除く): 31203580

約数列:

[1, 2, 4, 5, 10, 20, 29, 41, 58, 82, 116, 145, 164, 205, 290, 410, 580, 820, 1069, 1189, 2138, 2378, 4276, 4756, 5345, 5945, 10690, 11890, 21380, 23780, 31001, 43829, 62002, 87658, 124004, 155005, 175316, 219145, 310010, 438290, 620020, 876580, 1271041, 2542082, 5084164, 6355205, 12710410, 25420820]

約数ペア:

[(1, 25420820), (2, 12710410), (4, 6355205), (5, 5084164), (10, 2542082), (20, 1271041), (29, 876580), (41, 620020), (58, 438290), (82, 310010), (116, 219145), (145, 175316), (164, 155005), (205, 124004), (290, 87658), (410, 62002), (580, 43829), (820, 31001), (1069, 23780), (1189, 21380), (2138, 11890), (2378, 10690), (4276, 5945), (4756, 5345)]