127654520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1$

素因数の和:325

約数の個数: 128

約数和(自身を含む): 345600000

約数和(自身を除く): 217945480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 56, 58, 70, 79, 116, 140, 145, 158, 199, 203, 232, 280, 290, 316, 395, 398, 406, 553, 580, 632, 790, 796, 812, 995, 1015, 1106, 1160, 1393, 1580, 1592, 1624, 1990, 2030, 2212, 2291, 2765, 2786, 3160, 3980, 4060, 4424, 4582, 5530, 5572, 5771, 6965, 7960, 8120, 9164, 11060, 11144, 11455, 11542, 13930, 15721, 16037, 18328, 22120, 22910, 23084, 27860, 28855, 31442, 32074, 40397, 45820, 46168, 55720, 57710, 62884, 64148, 78605, 80185, 80794, 91640, 110047, 115420, 125768, 128296, 157210, 160370, 161588, 201985, 220094, 230840, 314420, 320740, 323176, 403970, 440188, 455909, 550235, 628840, 641480, 807940, 880376, 911818, 1100470, 1615880, 1823636, 2200940, 2279545, 3191363, 3647272, 4401880, 4559090, 6382726, 9118180, 12765452, 15956815, 18236360, 25530904, 31913630, 63827260, 127654520]

約数ペア:

[(1, 127654520), (2, 63827260), (4, 31913630), (5, 25530904), (7, 18236360), (8, 15956815), (10, 12765452), (14, 9118180), (20, 6382726), (28, 4559090), (29, 4401880), (35, 3647272), (40, 3191363), (56, 2279545), (58, 2200940), (70, 1823636), (79, 1615880), (116, 1100470), (140, 911818), (145, 880376), (158, 807940), (199, 641480), (203, 628840), (232, 550235), (280, 455909), (290, 440188), (316, 403970), (395, 323176), (398, 320740), (406, 314420), (553, 230840), (580, 220094), (632, 201985), (790, 161588), (796, 160370), (812, 157210), (995, 128296), (1015, 125768), (1106, 115420), (1160, 110047), (1393, 91640), (1580, 80794), (1592, 80185), (1624, 78605), (1990, 64148), (2030, 62884), (2212, 57710), (2291, 55720), (2765, 46168), (2786, 45820), (3160, 40397), (3980, 32074), (4060, 31442), (4424, 28855), (4582, 27860), (5530, 23084), (5572, 22910), (5771, 22120), (6965, 18328), (7960, 16037), (8120, 15721), (9164, 13930), (11060, 11542), (11144, 11455)]