138445520

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{42209}}^1$

素因数の和:42263

約数の個数: 40

約数和(自身を含む): 329744520

約数和(自身を除く): 191299000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 42209, 84418, 168836, 211045, 337672, 422090, 675344, 844180, 1688360, 1730569, 3376720, 3461138, 6922276, 8652845, 13844552, 17305690, 27689104, 34611380, 69222760, 138445520]

約数ペア:

[(1, 138445520), (2, 69222760), (4, 34611380), (5, 27689104), (8, 17305690), (10, 13844552), (16, 8652845), (20, 6922276), (40, 3461138), (41, 3376720), (80, 1730569), (82, 1688360), (164, 844180), (205, 675344), (328, 422090), (410, 337672), (656, 211045), (820, 168836), (1640, 84418), (3280, 42209)]