68561240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{155821}}^1$

素因数の和:155843

約数の個数: 32

約数和(自身を含む): 168287760

約数和(自身を除く): 99726520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 155821, 311642, 623284, 779105, 1246568, 1558210, 1714031, 3116420, 3428062, 6232840, 6856124, 8570155, 13712248, 17140310, 34280620, 68561240]

約数ペア:

[(1, 68561240), (2, 34280620), (4, 17140310), (5, 13712248), (8, 8570155), (10, 6856124), (11, 6232840), (20, 3428062), (22, 3116420), (40, 1714031), (44, 1558210), (55, 1246568), (88, 779105), (110, 623284), (220, 311642), (440, 155821)]