12487720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{433}}^1$

素因数の和:554

約数の個数: 64

約数和(自身を含む): 32497920

約数和(自身を除く): 20010200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 103, 140, 206, 280, 412, 433, 515, 721, 824, 866, 1030, 1442, 1732, 2060, 2165, 2884, 3031, 3464, 3605, 4120, 4330, 5768, 6062, 7210, 8660, 12124, 14420, 15155, 17320, 24248, 28840, 30310, 44599, 60620, 89198, 121240, 178396, 222995, 312193, 356792, 445990, 624386, 891980, 1248772, 1560965, 1783960, 2497544, 3121930, 6243860, 12487720]

約数ペア:

[(1, 12487720), (2, 6243860), (4, 3121930), (5, 2497544), (7, 1783960), (8, 1560965), (10, 1248772), (14, 891980), (20, 624386), (28, 445990), (35, 356792), (40, 312193), (56, 222995), (70, 178396), (103, 121240), (140, 89198), (206, 60620), (280, 44599), (412, 30310), (433, 28840), (515, 24248), (721, 17320), (824, 15155), (866, 14420), (1030, 12124), (1442, 8660), (1732, 7210), (2060, 6062), (2165, 5768), (2884, 4330), (3031, 4120), (3464, 3605)]