1981100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{1801}}^1$

素因数の和:1826

約数の個数: 36

約数和(自身を含む): 4692408

約数和(自身を除く): 2711308

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 220, 275, 550, 1100, 1801, 3602, 7204, 9005, 18010, 19811, 36020, 39622, 45025, 79244, 90050, 99055, 180100, 198110, 396220, 495275, 990550, 1981100]

約数ペア:

[(1, 1981100), (2, 990550), (4, 495275), (5, 396220), (10, 198110), (11, 180100), (20, 99055), (22, 90050), (25, 79244), (44, 45025), (50, 39622), (55, 36020), (100, 19811), (110, 18010), (220, 9005), (275, 7204), (550, 3602), (1100, 1801)]