128305280

素因数分解:

$2^7\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{223}}^1$

素因数の和:302

約数の個数: 128

約数和(自身を含む): 329011200

約数和(自身を除く): 200705920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 31, 32, 40, 58, 62, 64, 80, 116, 124, 128, 145, 155, 160, 223, 232, 248, 290, 310, 320, 446, 464, 496, 580, 620, 640, 892, 899, 928, 992, 1115, 1160, 1240, 1784, 1798, 1856, 1984, 2230, 2320, 2480, 3568, 3596, 3712, 3968, 4460, 4495, 4640, 4960, 6467, 6913, 7136, 7192, 8920, 8990, 9280, 9920, 12934, 13826, 14272, 14384, 17840, 17980, 18560, 19840, 25868, 27652, 28544, 28768, 32335, 34565, 35680, 35960, 51736, 55304, 57536, 64670, 69130, 71360, 71920, 103472, 110608, 115072, 129340, 138260, 142720, 143840, 200477, 206944, 221216, 258680, 276520, 287680, 400954, 413888, 442432, 517360, 553040, 575360, 801908, 827776, 884864, 1002385, 1034720, 1106080, 1603816, 2004770, 2069440, 2212160, 3207632, 4009540, 4138880, 4424320, 6415264, 8019080, 12830528, 16038160, 25661056, 32076320, 64152640, 128305280]

約数ペア:

[(1, 128305280), (2, 64152640), (4, 32076320), (5, 25661056), (8, 16038160), (10, 12830528), (16, 8019080), (20, 6415264), (29, 4424320), (31, 4138880), (32, 4009540), (40, 3207632), (58, 2212160), (62, 2069440), (64, 2004770), (80, 1603816), (116, 1106080), (124, 1034720), (128, 1002385), (145, 884864), (155, 827776), (160, 801908), (223, 575360), (232, 553040), (248, 517360), (290, 442432), (310, 413888), (320, 400954), (446, 287680), (464, 276520), (496, 258680), (580, 221216), (620, 206944), (640, 200477), (892, 143840), (899, 142720), (928, 138260), (992, 129340), (1115, 115072), (1160, 110608), (1240, 103472), (1784, 71920), (1798, 71360), (1856, 69130), (1984, 64670), (2230, 57536), (2320, 55304), (2480, 51736), (3568, 35960), (3596, 35680), (3712, 34565), (3968, 32335), (4460, 28768), (4495, 28544), (4640, 27652), (4960, 25868), (6467, 19840), (6913, 18560), (7136, 17980), (7192, 17840), (8920, 14384), (8990, 14272), (9280, 13826), (9920, 12934)]