421445776

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{157}}^1$

素因数の和:392

約数の個数: 80

約数和(自身を含む): 888693120

約数和(自身を除く): 467247344

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 71, 136, 139, 142, 157, 272, 278, 284, 314, 556, 568, 628, 1112, 1136, 1207, 1256, 2224, 2363, 2414, 2512, 2669, 4726, 4828, 5338, 9452, 9656, 9869, 10676, 11147, 18904, 19312, 19738, 21352, 21823, 22294, 37808, 39476, 42704, 43646, 44588, 78952, 87292, 89176, 157904, 167773, 174584, 178352, 189499, 335546, 349168, 370991, 378998, 671092, 741982, 757996, 1342184, 1483964, 1515992, 1549433, 2684368, 2967928, 3031984, 3098866, 5935856, 6197732, 12395464, 24790928, 26340361, 52680722, 105361444, 210722888, 421445776]

約数ペア:

[(1, 421445776), (2, 210722888), (4, 105361444), (8, 52680722), (16, 26340361), (17, 24790928), (34, 12395464), (68, 6197732), (71, 5935856), (136, 3098866), (139, 3031984), (142, 2967928), (157, 2684368), (272, 1549433), (278, 1515992), (284, 1483964), (314, 1342184), (556, 757996), (568, 741982), (628, 671092), (1112, 378998), (1136, 370991), (1207, 349168), (1256, 335546), (2224, 189499), (2363, 178352), (2414, 174584), (2512, 167773), (2669, 157904), (4726, 89176), (4828, 87292), (5338, 78952), (9452, 44588), (9656, 43646), (9869, 42704), (10676, 39476), (11147, 37808), (18904, 22294), (19312, 21823), (19738, 21352)]