128605280

素因数分解:

$2^5\times 5^1\times {\mathrm{127}}^1\times {\mathrm{6329}}^1$

素因数の和:6471

約数の個数: 48

約数和(自身を含む): 306270720

約数和(自身を除く): 177665440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 127, 160, 254, 508, 635, 1016, 1270, 2032, 2540, 4064, 5080, 6329, 10160, 12658, 20320, 25316, 31645, 50632, 63290, 101264, 126580, 202528, 253160, 506320, 803783, 1012640, 1607566, 3215132, 4018915, 6430264, 8037830, 12860528, 16075660, 25721056, 32151320, 64302640, 128605280]

約数ペア:

[(1, 128605280), (2, 64302640), (4, 32151320), (5, 25721056), (8, 16075660), (10, 12860528), (16, 8037830), (20, 6430264), (32, 4018915), (40, 3215132), (80, 1607566), (127, 1012640), (160, 803783), (254, 506320), (508, 253160), (635, 202528), (1016, 126580), (1270, 101264), (2032, 63290), (2540, 50632), (4064, 31645), (5080, 25316), (6329, 20320), (10160, 12658)]