67789900

素因数分解:

$2^2\times 5^2\times {\mathrm{79}}^1\times {\mathrm{8581}}^1$

素因数の和:8674

約数の個数: 36

約数和(自身を含む): 148983520

約数和(自身を除く): 81193620

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 79, 100, 158, 316, 395, 790, 1580, 1975, 3950, 7900, 8581, 17162, 34324, 42905, 85810, 171620, 214525, 429050, 677899, 858100, 1355798, 2711596, 3389495, 6778990, 13557980, 16947475, 33894950, 67789900]

約数ペア:

[(1, 67789900), (2, 33894950), (4, 16947475), (5, 13557980), (10, 6778990), (20, 3389495), (25, 2711596), (50, 1355798), (79, 858100), (100, 677899), (158, 429050), (316, 214525), (395, 171620), (790, 85810), (1580, 42905), (1975, 34324), (3950, 17162), (7900, 8581)]