12690940

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{587}}^1$

素因数の和:666

約数の個数: 48

約数和(自身を含む): 28449792

約数和(自身を除く): 15758852

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 47, 92, 94, 115, 188, 230, 235, 460, 470, 587, 940, 1081, 1174, 2162, 2348, 2935, 4324, 5405, 5870, 10810, 11740, 13501, 21620, 27002, 27589, 54004, 55178, 67505, 110356, 135010, 137945, 270020, 275890, 551780, 634547, 1269094, 2538188, 3172735, 6345470, 12690940]

約数ペア:

[(1, 12690940), (2, 6345470), (4, 3172735), (5, 2538188), (10, 1269094), (20, 634547), (23, 551780), (46, 275890), (47, 270020), (92, 137945), (94, 135010), (115, 110356), (188, 67505), (230, 55178), (235, 54004), (460, 27589), (470, 27002), (587, 21620), (940, 13501), (1081, 11740), (1174, 10810), (2162, 5870), (2348, 5405), (2935, 4324)]