18489020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2711}}^1$

素因数の和:2762

約数の個数: 48

約数和(自身を含む): 43739136

約数和(自身を除く): 25250116

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 220, 310, 341, 620, 682, 1364, 1705, 2711, 3410, 5422, 6820, 10844, 13555, 27110, 29821, 54220, 59642, 84041, 119284, 149105, 168082, 298210, 336164, 420205, 596420, 840410, 924451, 1680820, 1848902, 3697804, 4622255, 9244510, 18489020]

約数ペア:

[(1, 18489020), (2, 9244510), (4, 4622255), (5, 3697804), (10, 1848902), (11, 1680820), (20, 924451), (22, 840410), (31, 596420), (44, 420205), (55, 336164), (62, 298210), (110, 168082), (124, 149105), (155, 119284), (220, 84041), (310, 59642), (341, 54220), (620, 29821), (682, 27110), (1364, 13555), (1705, 10844), (2711, 6820), (3410, 5422)]