18841240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{42821}}^1$

素因数の和:42843

約数の個数: 32

約数和(自身を含む): 46247760

約数和(自身を除く): 27406520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 42821, 85642, 171284, 214105, 342568, 428210, 471031, 856420, 942062, 1712840, 1884124, 2355155, 3768248, 4710310, 9420620, 18841240]

約数ペア:

[(1, 18841240), (2, 9420620), (4, 4710310), (5, 3768248), (8, 2355155), (10, 1884124), (11, 1712840), (20, 942062), (22, 856420), (40, 471031), (44, 428210), (55, 342568), (88, 214105), (110, 171284), (220, 85642), (440, 42821)]