687348520

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{349}}^1\times {\mathrm{929}}^1$

素因数の和:1342

約数の個数: 64

約数和(自身を含む): 1581930000

約数和(自身を除く): 894581480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 349, 424, 530, 698, 929, 1060, 1396, 1745, 1858, 2120, 2792, 3490, 3716, 4645, 6980, 7432, 9290, 13960, 18497, 18580, 36994, 37160, 49237, 73988, 92485, 98474, 147976, 184970, 196948, 246185, 324221, 369940, 393896, 492370, 648442, 739880, 984740, 1296884, 1621105, 1969480, 2593768, 3242210, 6484420, 12968840, 17183713, 34367426, 68734852, 85918565, 137469704, 171837130, 343674260, 687348520]

約数ペア:

[(1, 687348520), (2, 343674260), (4, 171837130), (5, 137469704), (8, 85918565), (10, 68734852), (20, 34367426), (40, 17183713), (53, 12968840), (106, 6484420), (212, 3242210), (265, 2593768), (349, 1969480), (424, 1621105), (530, 1296884), (698, 984740), (929, 739880), (1060, 648442), (1396, 492370), (1745, 393896), (1858, 369940), (2120, 324221), (2792, 246185), (3490, 196948), (3716, 184970), (4645, 147976), (6980, 98474), (7432, 92485), (9290, 73988), (13960, 49237), (18497, 37160), (18580, 36994)]