81879380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{372179}}^1$

素因数の和:372199

約数の個数: 24

約数和(自身を含む): 187578720

約数和(自身を除く): 105699340

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 372179, 744358, 1488716, 1860895, 3721790, 4093969, 7443580, 8187938, 16375876, 20469845, 40939690, 81879380]

約数ペア:

[(1, 81879380), (2, 40939690), (4, 20469845), (5, 16375876), (10, 8187938), (11, 7443580), (20, 4093969), (22, 3721790), (44, 1860895), (55, 1488716), (110, 744358), (220, 372179)]