12235720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{491}}^1$

素因数の和:598

約数の個数: 64

約数和(自身を含む): 31881600

約数和(自身を除く): 19645880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 89, 140, 178, 280, 356, 445, 491, 623, 712, 890, 982, 1246, 1780, 1964, 2455, 2492, 3115, 3437, 3560, 3928, 4910, 4984, 6230, 6874, 9820, 12460, 13748, 17185, 19640, 24920, 27496, 34370, 43699, 68740, 87398, 137480, 174796, 218495, 305893, 349592, 436990, 611786, 873980, 1223572, 1529465, 1747960, 2447144, 3058930, 6117860, 12235720]

約数ペア:

[(1, 12235720), (2, 6117860), (4, 3058930), (5, 2447144), (7, 1747960), (8, 1529465), (10, 1223572), (14, 873980), (20, 611786), (28, 436990), (35, 349592), (40, 305893), (56, 218495), (70, 174796), (89, 137480), (140, 87398), (178, 68740), (280, 43699), (356, 34370), (445, 27496), (491, 24920), (623, 19640), (712, 17185), (890, 13748), (982, 12460), (1246, 9820), (1780, 6874), (1964, 6230), (2455, 4984), (2492, 4910), (3115, 3928), (3437, 3560)]