2641041280

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{133117}}^1$

素因数の和:133167

約数の個数: 64

約数和(自身を含む): 6517457280

約数和(自身を除く): 3876416000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3968, 4960, 9920, 19840, 133117, 266234, 532468, 665585, 1064936, 1331170, 2129872, 2662340, 4126627, 4259744, 5324680, 8253254, 8519488, 10649360, 16506508, 17038976, 20633135, 21298720, 33013016, 41266270, 42597440, 66026032, 82532540, 85194880, 132052064, 165065080, 264104128, 330130160, 528208256, 660260320, 1320520640, 2641041280]

約数ペア:

[(1, 2641041280), (2, 1320520640), (4, 660260320), (5, 528208256), (8, 330130160), (10, 264104128), (16, 165065080), (20, 132052064), (31, 85194880), (32, 82532540), (40, 66026032), (62, 42597440), (64, 41266270), (80, 33013016), (124, 21298720), (128, 20633135), (155, 17038976), (160, 16506508), (248, 10649360), (310, 8519488), (320, 8253254), (496, 5324680), (620, 4259744), (640, 4126627), (992, 2662340), (1240, 2129872), (1984, 1331170), (2480, 1064936), (3968, 665585), (4960, 532468), (9920, 266234), (19840, 133117)]