31156720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1$

素因数の和:143

約数の個数: 160

約数和(自身を含む): 89994240

約数和(自身を除く): 58837520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 41, 46, 56, 59, 70, 80, 82, 92, 112, 115, 118, 140, 161, 164, 184, 205, 230, 236, 280, 287, 295, 322, 328, 368, 410, 413, 460, 472, 560, 574, 590, 644, 656, 805, 820, 826, 920, 943, 944, 1148, 1180, 1288, 1357, 1435, 1610, 1640, 1652, 1840, 1886, 2065, 2296, 2360, 2419, 2576, 2714, 2870, 3220, 3280, 3304, 3772, 4130, 4592, 4715, 4720, 4838, 5428, 5740, 6440, 6601, 6608, 6785, 7544, 8260, 9430, 9499, 9676, 10856, 11480, 12095, 12880, 13202, 13570, 15088, 16520, 16933, 18860, 18998, 19352, 21712, 22960, 24190, 26404, 27140, 33005, 33040, 33866, 37720, 37996, 38704, 47495, 48380, 52808, 54280, 55637, 66010, 67732, 75440, 75992, 84665, 94990, 96760, 105616, 108560, 111274, 132020, 135464, 151984, 169330, 189980, 193520, 222548, 264040, 270928, 278185, 338660, 379960, 389459, 445096, 528080, 556370, 677320, 759920, 778918, 890192, 1112740, 1354640, 1557836, 1947295, 2225480, 3115672, 3894590, 4450960, 6231344, 7789180, 15578360, 31156720]

約数ペア:

[(1, 31156720), (2, 15578360), (4, 7789180), (5, 6231344), (7, 4450960), (8, 3894590), (10, 3115672), (14, 2225480), (16, 1947295), (20, 1557836), (23, 1354640), (28, 1112740), (35, 890192), (40, 778918), (41, 759920), (46, 677320), (56, 556370), (59, 528080), (70, 445096), (80, 389459), (82, 379960), (92, 338660), (112, 278185), (115, 270928), (118, 264040), (140, 222548), (161, 193520), (164, 189980), (184, 169330), (205, 151984), (230, 135464), (236, 132020), (280, 111274), (287, 108560), (295, 105616), (322, 96760), (328, 94990), (368, 84665), (410, 75992), (413, 75440), (460, 67732), (472, 66010), (560, 55637), (574, 54280), (590, 52808), (644, 48380), (656, 47495), (805, 38704), (820, 37996), (826, 37720), (920, 33866), (943, 33040), (944, 33005), (1148, 27140), (1180, 26404), (1288, 24190), (1357, 22960), (1435, 21712), (1610, 19352), (1640, 18998), (1652, 18860), (1840, 16933), (1886, 16520), (2065, 15088), (2296, 13570), (2360, 13202), (2419, 12880), (2576, 12095), (2714, 11480), (2870, 10856), (3220, 9676), (3280, 9499), (3304, 9430), (3772, 8260), (4130, 7544), (4592, 6785), (4715, 6608), (4720, 6601), (4838, 6440), (5428, 5740)]