28076840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{5801}}^1$

素因数の和:5834

約数の個数: 48

約数和(自身を含む): 69449940

約数和(自身を除く): 41373100

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 2420, 4840, 5801, 11602, 23204, 29005, 46408, 58010, 63811, 116020, 127622, 232040, 255244, 319055, 510488, 638110, 701921, 1276220, 1403842, 2552440, 2807684, 3509605, 5615368, 7019210, 14038420, 28076840]

約数ペア:

[(1, 28076840), (2, 14038420), (4, 7019210), (5, 5615368), (8, 3509605), (10, 2807684), (11, 2552440), (20, 1403842), (22, 1276220), (40, 701921), (44, 638110), (55, 510488), (88, 319055), (110, 255244), (121, 232040), (220, 127622), (242, 116020), (440, 63811), (484, 58010), (605, 46408), (968, 29005), (1210, 23204), (2420, 11602), (4840, 5801)]