71781160

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{173}}^1$

素因数の和:259

約数の個数: 128

約数和(自身を含む): 189423360

約数和(自身を除く): 117642200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 41, 44, 46, 55, 82, 88, 92, 110, 115, 164, 173, 184, 205, 220, 230, 253, 328, 346, 410, 440, 451, 460, 506, 692, 820, 865, 902, 920, 943, 1012, 1265, 1384, 1640, 1730, 1804, 1886, 1903, 2024, 2255, 2530, 3460, 3608, 3772, 3806, 3979, 4510, 4715, 5060, 6920, 7093, 7544, 7612, 7958, 9020, 9430, 9515, 10120, 10373, 14186, 15224, 15916, 18040, 18860, 19030, 19895, 20746, 28372, 31832, 35465, 37720, 38060, 39790, 41492, 43769, 51865, 56744, 70930, 76120, 78023, 79580, 82984, 87538, 103730, 141860, 156046, 159160, 163139, 175076, 207460, 218845, 283720, 312092, 326278, 350152, 390115, 414920, 437690, 624184, 652556, 780230, 815695, 875380, 1305112, 1560460, 1631390, 1750760, 1794529, 3120920, 3262780, 3589058, 6525560, 7178116, 8972645, 14356232, 17945290, 35890580, 71781160]

約数ペア:

[(1, 71781160), (2, 35890580), (4, 17945290), (5, 14356232), (8, 8972645), (10, 7178116), (11, 6525560), (20, 3589058), (22, 3262780), (23, 3120920), (40, 1794529), (41, 1750760), (44, 1631390), (46, 1560460), (55, 1305112), (82, 875380), (88, 815695), (92, 780230), (110, 652556), (115, 624184), (164, 437690), (173, 414920), (184, 390115), (205, 350152), (220, 326278), (230, 312092), (253, 283720), (328, 218845), (346, 207460), (410, 175076), (440, 163139), (451, 159160), (460, 156046), (506, 141860), (692, 103730), (820, 87538), (865, 82984), (902, 79580), (920, 78023), (943, 76120), (1012, 70930), (1265, 56744), (1384, 51865), (1640, 43769), (1730, 41492), (1804, 39790), (1886, 38060), (1903, 37720), (2024, 35465), (2255, 31832), (2530, 28372), (3460, 20746), (3608, 19895), (3772, 19030), (3806, 18860), (3979, 18040), (4510, 15916), (4715, 15224), (5060, 14186), (6920, 10373), (7093, 10120), (7544, 9515), (7612, 9430), (7958, 9020)]