280013360

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{28927}}^1$

素因数の和:28962

約数の個数: 60

約数和(自身を含む): 715620864

約数和(自身を除く): 435607504

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 121, 176, 220, 242, 440, 484, 605, 880, 968, 1210, 1936, 2420, 4840, 9680, 28927, 57854, 115708, 144635, 231416, 289270, 318197, 462832, 578540, 636394, 1157080, 1272788, 1590985, 2314160, 2545576, 3181970, 3500167, 5091152, 6363940, 7000334, 12727880, 14000668, 17500835, 25455760, 28001336, 35001670, 56002672, 70003340, 140006680, 280013360]

約数ペア:

[(1, 280013360), (2, 140006680), (4, 70003340), (5, 56002672), (8, 35001670), (10, 28001336), (11, 25455760), (16, 17500835), (20, 14000668), (22, 12727880), (40, 7000334), (44, 6363940), (55, 5091152), (80, 3500167), (88, 3181970), (110, 2545576), (121, 2314160), (176, 1590985), (220, 1272788), (242, 1157080), (440, 636394), (484, 578540), (605, 462832), (880, 318197), (968, 289270), (1210, 231416), (1936, 144635), (2420, 115708), (4840, 57854), (9680, 28927)]