18485720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{42013}}^1$

素因数の和:42035

約数の個数: 32

約数和(自身を含む): 45375120

約数和(自身を除く): 26889400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 42013, 84026, 168052, 210065, 336104, 420130, 462143, 840260, 924286, 1680520, 1848572, 2310715, 3697144, 4621430, 9242860, 18485720]

約数ペア:

[(1, 18485720), (2, 9242860), (4, 4621430), (5, 3697144), (8, 2310715), (10, 1848572), (11, 1680520), (20, 924286), (22, 840260), (40, 462143), (44, 420130), (55, 336104), (88, 210065), (110, 168052), (220, 84026), (440, 42013)]