90126280

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{859}}^1$

素因数の和:974

約数の個数: 64

約数和(自身を含む): 211147200

約数和(自身を除く): 121020920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 61, 86, 122, 172, 215, 244, 305, 344, 430, 488, 610, 859, 860, 1220, 1718, 1720, 2440, 2623, 3436, 4295, 5246, 6872, 8590, 10492, 13115, 17180, 20984, 26230, 34360, 36937, 52399, 52460, 73874, 104798, 104920, 147748, 184685, 209596, 261995, 295496, 369370, 419192, 523990, 738740, 1047980, 1477480, 2095960, 2253157, 4506314, 9012628, 11265785, 18025256, 22531570, 45063140, 90126280]

約数ペア:

[(1, 90126280), (2, 45063140), (4, 22531570), (5, 18025256), (8, 11265785), (10, 9012628), (20, 4506314), (40, 2253157), (43, 2095960), (61, 1477480), (86, 1047980), (122, 738740), (172, 523990), (215, 419192), (244, 369370), (305, 295496), (344, 261995), (430, 209596), (488, 184685), (610, 147748), (859, 104920), (860, 104798), (1220, 73874), (1718, 52460), (1720, 52399), (2440, 36937), (2623, 34360), (3436, 26230), (4295, 20984), (5246, 17180), (6872, 13115), (8590, 10492)]