1681240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{3821}}^1$

素因数の和:3843

約数の個数: 32

約数和(自身を含む): 4127760

約数和(自身を除く): 2446520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 3821, 7642, 15284, 19105, 30568, 38210, 42031, 76420, 84062, 152840, 168124, 210155, 336248, 420310, 840620, 1681240]

約数ペア:

[(1, 1681240), (2, 840620), (4, 420310), (5, 336248), (8, 210155), (10, 168124), (11, 152840), (20, 84062), (22, 76420), (40, 42031), (44, 38210), (55, 30568), (88, 19105), (110, 15284), (220, 7642), (440, 3821)]