8662640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{499}}^1$

素因数の和:550

約数の個数: 80

約数和(自身を含む): 23808000

約数和(自身を除く): 15145360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 217, 248, 280, 310, 434, 496, 499, 560, 620, 868, 998, 1085, 1240, 1736, 1996, 2170, 2480, 2495, 3472, 3493, 3992, 4340, 4990, 6986, 7984, 8680, 9980, 13972, 15469, 17360, 17465, 19960, 27944, 30938, 34930, 39920, 55888, 61876, 69860, 77345, 108283, 123752, 139720, 154690, 216566, 247504, 279440, 309380, 433132, 541415, 618760, 866264, 1082830, 1237520, 1732528, 2165660, 4331320, 8662640]

約数ペア:

[(1, 8662640), (2, 4331320), (4, 2165660), (5, 1732528), (7, 1237520), (8, 1082830), (10, 866264), (14, 618760), (16, 541415), (20, 433132), (28, 309380), (31, 279440), (35, 247504), (40, 216566), (56, 154690), (62, 139720), (70, 123752), (80, 108283), (112, 77345), (124, 69860), (140, 61876), (155, 55888), (217, 39920), (248, 34930), (280, 30938), (310, 27944), (434, 19960), (496, 17465), (499, 17360), (560, 15469), (620, 13972), (868, 9980), (998, 8680), (1085, 7984), (1240, 6986), (1736, 4990), (1996, 4340), (2170, 3992), (2480, 3493), (2495, 3472)]