684638720

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{8627}}^1$

素因数の和:8681

約数の個数: 80

約数和(自身を含む): 1694677248

約数和(自身を除く): 1010038528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 992, 1240, 1280, 1984, 2480, 2560, 3968, 4960, 7936, 8627, 9920, 15872, 17254, 19840, 34508, 39680, 43135, 69016, 79360, 86270, 138032, 172540, 267437, 276064, 345080, 534874, 552128, 690160, 1069748, 1104256, 1337185, 1380320, 2139496, 2208512, 2674370, 2760640, 4278992, 4417024, 5348740, 5521280, 8557984, 10697480, 11042560, 17115968, 21394960, 22085120, 34231936, 42789920, 68463872, 85579840, 136927744, 171159680, 342319360, 684638720]

約数ペア:

[(1, 684638720), (2, 342319360), (4, 171159680), (5, 136927744), (8, 85579840), (10, 68463872), (16, 42789920), (20, 34231936), (31, 22085120), (32, 21394960), (40, 17115968), (62, 11042560), (64, 10697480), (80, 8557984), (124, 5521280), (128, 5348740), (155, 4417024), (160, 4278992), (248, 2760640), (256, 2674370), (310, 2208512), (320, 2139496), (496, 1380320), (512, 1337185), (620, 1104256), (640, 1069748), (992, 690160), (1240, 552128), (1280, 534874), (1984, 345080), (2480, 276064), (2560, 267437), (3968, 172540), (4960, 138032), (7936, 86270), (8627, 79360), (9920, 69016), (15872, 43135), (17254, 39680), (19840, 34508)]