25821000740

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{257}}^1\times {\mathrm{21019}}^1$

素因数の和:21524

約数の個数: 48

約数和(自身を含む): 54665452800

約数和(自身を除く): 28844452060

約数列:

[1, 2, 4, 5, 10, 20, 239, 257, 478, 514, 956, 1028, 1195, 1285, 2390, 2570, 4780, 5140, 21019, 42038, 61423, 84076, 105095, 122846, 210190, 245692, 307115, 420380, 614230, 1228460, 5023541, 5401883, 10047082, 10803766, 20094164, 21607532, 25117705, 27009415, 50235410, 54018830, 100470820, 108037660, 1291050037, 2582100074, 5164200148, 6455250185, 12910500370, 25821000740]

約数ペア:

[(1, 25821000740), (2, 12910500370), (4, 6455250185), (5, 5164200148), (10, 2582100074), (20, 1291050037), (239, 108037660), (257, 100470820), (478, 54018830), (514, 50235410), (956, 27009415), (1028, 25117705), (1195, 21607532), (1285, 20094164), (2390, 10803766), (2570, 10047082), (4780, 5401883), (5140, 5023541), (21019, 1228460), (42038, 614230), (61423, 420380), (84076, 307115), (105095, 245692), (122846, 210190)]