161755520

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^2\times {\mathrm{263}}^1$

素因数の和:344

約数の個数: 96

約数和(自身を含む): 401092560

約数和(自身を除く): 239337040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 263, 310, 320, 496, 526, 620, 640, 961, 992, 1052, 1240, 1315, 1922, 1984, 2104, 2480, 2630, 3844, 3968, 4208, 4805, 4960, 5260, 7688, 8153, 8416, 9610, 9920, 10520, 15376, 16306, 16832, 19220, 19840, 21040, 30752, 32612, 33664, 38440, 40765, 42080, 61504, 65224, 76880, 81530, 84160, 123008, 130448, 153760, 163060, 168320, 252743, 260896, 307520, 326120, 505486, 521792, 615040, 652240, 1010972, 1043584, 1263715, 1304480, 2021944, 2527430, 2608960, 4043888, 5054860, 5217920, 8087776, 10109720, 16175552, 20219440, 32351104, 40438880, 80877760, 161755520]

約数ペア:

[(1, 161755520), (2, 80877760), (4, 40438880), (5, 32351104), (8, 20219440), (10, 16175552), (16, 10109720), (20, 8087776), (31, 5217920), (32, 5054860), (40, 4043888), (62, 2608960), (64, 2527430), (80, 2021944), (124, 1304480), (128, 1263715), (155, 1043584), (160, 1010972), (248, 652240), (263, 615040), (310, 521792), (320, 505486), (496, 326120), (526, 307520), (620, 260896), (640, 252743), (961, 168320), (992, 163060), (1052, 153760), (1240, 130448), (1315, 123008), (1922, 84160), (1984, 81530), (2104, 76880), (2480, 65224), (2630, 61504), (3844, 42080), (3968, 40765), (4208, 38440), (4805, 33664), (4960, 32612), (5260, 30752), (7688, 21040), (8153, 19840), (8416, 19220), (9610, 16832), (9920, 16306), (10520, 15376)]