18820450

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1801}}^1$

素因数の和:1843

約数の個数: 48

約数和(自身を含む): 40220640

約数和(自身を除く): 21400190

約数列:

[1, 2, 5, 10, 11, 19, 22, 25, 38, 50, 55, 95, 110, 190, 209, 275, 418, 475, 550, 950, 1045, 1801, 2090, 3602, 5225, 9005, 10450, 18010, 19811, 34219, 39622, 45025, 68438, 90050, 99055, 171095, 198110, 342190, 376409, 495275, 752818, 855475, 990550, 1710950, 1882045, 3764090, 9410225, 18820450]

約数ペア:

[(1, 18820450), (2, 9410225), (5, 3764090), (10, 1882045), (11, 1710950), (19, 990550), (22, 855475), (25, 752818), (38, 495275), (50, 376409), (55, 342190), (95, 198110), (110, 171095), (190, 99055), (209, 90050), (275, 68438), (418, 45025), (475, 39622), (550, 34219), (950, 19811), (1045, 18010), (1801, 10450), (2090, 9005), (3602, 5225)]