8381240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{809}}^1$

素因数の和:864

約数の個数: 64

約数和(自身を含む): 22161600

約数和(自身を除く): 13780360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 56, 70, 74, 140, 148, 185, 259, 280, 296, 370, 518, 740, 809, 1036, 1295, 1480, 1618, 2072, 2590, 3236, 4045, 5180, 5663, 6472, 8090, 10360, 11326, 16180, 22652, 28315, 29933, 32360, 45304, 56630, 59866, 113260, 119732, 149665, 209531, 226520, 239464, 299330, 419062, 598660, 838124, 1047655, 1197320, 1676248, 2095310, 4190620, 8381240]

約数ペア:

[(1, 8381240), (2, 4190620), (4, 2095310), (5, 1676248), (7, 1197320), (8, 1047655), (10, 838124), (14, 598660), (20, 419062), (28, 299330), (35, 239464), (37, 226520), (40, 209531), (56, 149665), (70, 119732), (74, 113260), (140, 59866), (148, 56630), (185, 45304), (259, 32360), (280, 29933), (296, 28315), (370, 22652), (518, 16180), (740, 11326), (809, 10360), (1036, 8090), (1295, 6472), (1480, 5663), (1618, 5180), (2072, 4045), (2590, 3236)]