90421640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{1291}}^1$

素因数の和:1422

約数の個数: 64

約数和(自身を含む): 217676160

約数和(自身を除く): 127254520

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 103, 136, 170, 206, 340, 412, 515, 680, 824, 1030, 1291, 1751, 2060, 2582, 3502, 4120, 5164, 6455, 7004, 8755, 10328, 12910, 14008, 17510, 21947, 25820, 35020, 43894, 51640, 70040, 87788, 109735, 132973, 175576, 219470, 265946, 438940, 531892, 664865, 877880, 1063784, 1329730, 2260541, 2659460, 4521082, 5318920, 9042164, 11302705, 18084328, 22605410, 45210820, 90421640]

約数ペア:

[(1, 90421640), (2, 45210820), (4, 22605410), (5, 18084328), (8, 11302705), (10, 9042164), (17, 5318920), (20, 4521082), (34, 2659460), (40, 2260541), (68, 1329730), (85, 1063784), (103, 877880), (136, 664865), (170, 531892), (206, 438940), (340, 265946), (412, 219470), (515, 175576), (680, 132973), (824, 109735), (1030, 87788), (1291, 70040), (1751, 51640), (2060, 43894), (2582, 35020), (3502, 25820), (4120, 21947), (5164, 17510), (6455, 14008), (7004, 12910), (8755, 10328)]