8780840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{349}}^1$

素因数の和:414

約数の個数: 64

約数和(自身を含む): 21546000

約数和(自身を除く): 12765160

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 37, 40, 68, 74, 85, 136, 148, 170, 185, 296, 340, 349, 370, 629, 680, 698, 740, 1258, 1396, 1480, 1745, 2516, 2792, 3145, 3490, 5032, 5933, 6290, 6980, 11866, 12580, 12913, 13960, 23732, 25160, 25826, 29665, 47464, 51652, 59330, 64565, 103304, 118660, 129130, 219521, 237320, 258260, 439042, 516520, 878084, 1097605, 1756168, 2195210, 4390420, 8780840]

約数ペア:

[(1, 8780840), (2, 4390420), (4, 2195210), (5, 1756168), (8, 1097605), (10, 878084), (17, 516520), (20, 439042), (34, 258260), (37, 237320), (40, 219521), (68, 129130), (74, 118660), (85, 103304), (136, 64565), (148, 59330), (170, 51652), (185, 47464), (296, 29665), (340, 25826), (349, 25160), (370, 23732), (629, 13960), (680, 12913), (698, 12580), (740, 11866), (1258, 6980), (1396, 6290), (1480, 5933), (1745, 5032), (2516, 3490), (2792, 3145)]