86995720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{3491}}^1$

素因数の和:3598

約数の個数: 64

約数和(自身を含む): 226281600

約数和(自身を除く): 139285880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 89, 140, 178, 280, 356, 445, 623, 712, 890, 1246, 1780, 2492, 3115, 3491, 3560, 4984, 6230, 6982, 12460, 13964, 17455, 24437, 24920, 27928, 34910, 48874, 69820, 97748, 122185, 139640, 195496, 244370, 310699, 488740, 621398, 977480, 1242796, 1553495, 2174893, 2485592, 3106990, 4349786, 6213980, 8699572, 10874465, 12427960, 17399144, 21748930, 43497860, 86995720]

約数ペア:

[(1, 86995720), (2, 43497860), (4, 21748930), (5, 17399144), (7, 12427960), (8, 10874465), (10, 8699572), (14, 6213980), (20, 4349786), (28, 3106990), (35, 2485592), (40, 2174893), (56, 1553495), (70, 1242796), (89, 977480), (140, 621398), (178, 488740), (280, 310699), (356, 244370), (445, 195496), (623, 139640), (712, 122185), (890, 97748), (1246, 69820), (1780, 48874), (2492, 34910), (3115, 27928), (3491, 24920), (3560, 24437), (4984, 17455), (6230, 13964), (6982, 12460)]