39967480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{409}}^1$

素因数の和:776

約数の個数: 64

約数和(自身を含む): 103320000

約数和(自身を除く): 63352520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 349, 409, 698, 818, 1396, 1636, 1745, 2045, 2443, 2792, 2863, 3272, 3490, 4090, 4886, 5726, 6980, 8180, 9772, 11452, 12215, 13960, 14315, 16360, 19544, 22904, 24430, 28630, 48860, 57260, 97720, 114520, 142741, 285482, 570964, 713705, 999187, 1141928, 1427410, 1998374, 2854820, 3996748, 4995935, 5709640, 7993496, 9991870, 19983740, 39967480]

約数ペア:

[(1, 39967480), (2, 19983740), (4, 9991870), (5, 7993496), (7, 5709640), (8, 4995935), (10, 3996748), (14, 2854820), (20, 1998374), (28, 1427410), (35, 1141928), (40, 999187), (56, 713705), (70, 570964), (140, 285482), (280, 142741), (349, 114520), (409, 97720), (698, 57260), (818, 48860), (1396, 28630), (1636, 24430), (1745, 22904), (2045, 19544), (2443, 16360), (2792, 14315), (2863, 13960), (3272, 12215), (3490, 11452), (4090, 9772), (4886, 8180), (5726, 6980)]