90744280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{206237}}^1$

素因数の和:206259

約数の個数: 32

約数和(自身を含む): 222737040

約数和(自身を除く): 131992760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 206237, 412474, 824948, 1031185, 1649896, 2062370, 2268607, 4124740, 4537214, 8249480, 9074428, 11343035, 18148856, 22686070, 45372140, 90744280]

約数ペア:

[(1, 90744280), (2, 45372140), (4, 22686070), (5, 18148856), (8, 11343035), (10, 9074428), (11, 8249480), (20, 4537214), (22, 4124740), (40, 2268607), (44, 2062370), (55, 1649896), (88, 1031185), (110, 824948), (220, 412474), (440, 206237)]