40438880

素因数分解:

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

素因数の和:340

約数の個数: 72

約数和(自身を含む): 99093456

約数和(自身を除く): 58654576

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 263, 310, 496, 526, 620, 961, 992, 1052, 1240, 1315, 1922, 2104, 2480, 2630, 3844, 4208, 4805, 4960, 5260, 7688, 8153, 8416, 9610, 10520, 15376, 16306, 19220, 21040, 30752, 32612, 38440, 40765, 42080, 65224, 76880, 81530, 130448, 153760, 163060, 252743, 260896, 326120, 505486, 652240, 1010972, 1263715, 1304480, 2021944, 2527430, 4043888, 5054860, 8087776, 10109720, 20219440, 40438880]

約数ペア:

[(1, 40438880), (2, 20219440), (4, 10109720), (5, 8087776), (8, 5054860), (10, 4043888), (16, 2527430), (20, 2021944), (31, 1304480), (32, 1263715), (40, 1010972), (62, 652240), (80, 505486), (124, 326120), (155, 260896), (160, 252743), (248, 163060), (263, 153760), (310, 130448), (496, 81530), (526, 76880), (620, 65224), (961, 42080), (992, 40765), (1052, 38440), (1240, 32612), (1315, 30752), (1922, 21040), (2104, 19220), (2480, 16306), (2630, 15376), (3844, 10520), (4208, 9610), (4805, 8416), (4960, 8153), (5260, 7688)]