8257340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{349}}^1$

素因数の和:391

約数の個数: 72

約数和(自身を含む): 21520800

約数和(自身を除く): 13263460

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 169, 182, 260, 338, 349, 364, 455, 676, 698, 845, 910, 1183, 1396, 1690, 1745, 1820, 2366, 2443, 3380, 3490, 4537, 4732, 4886, 5915, 6980, 9074, 9772, 11830, 12215, 18148, 22685, 23660, 24430, 31759, 45370, 48860, 58981, 63518, 90740, 117962, 127036, 158795, 235924, 294905, 317590, 412867, 589810, 635180, 825734, 1179620, 1651468, 2064335, 4128670, 8257340]

約数ペア:

[(1, 8257340), (2, 4128670), (4, 2064335), (5, 1651468), (7, 1179620), (10, 825734), (13, 635180), (14, 589810), (20, 412867), (26, 317590), (28, 294905), (35, 235924), (52, 158795), (65, 127036), (70, 117962), (91, 90740), (130, 63518), (140, 58981), (169, 48860), (182, 45370), (260, 31759), (338, 24430), (349, 23660), (364, 22685), (455, 18148), (676, 12215), (698, 11830), (845, 9772), (910, 9074), (1183, 6980), (1396, 5915), (1690, 4886), (1745, 4732), (1820, 4537), (2366, 3490), (2443, 3380)]