1406624720

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{22571}}^1$

素因数の和:22644

約数の個数: 80

約数和(自身を含む): 3526649280

約数和(自身を除く): 2120024560

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 41, 76, 80, 82, 95, 152, 164, 190, 205, 304, 328, 380, 410, 656, 760, 779, 820, 1520, 1558, 1640, 3116, 3280, 3895, 6232, 7790, 12464, 15580, 22571, 31160, 45142, 62320, 90284, 112855, 180568, 225710, 361136, 428849, 451420, 857698, 902840, 925411, 1715396, 1805680, 1850822, 2144245, 3430792, 3701644, 4288490, 4627055, 6861584, 7403288, 8576980, 9254110, 14806576, 17153960, 17582809, 18508220, 34307920, 35165618, 37016440, 70331236, 74032880, 87914045, 140662472, 175828090, 281324944, 351656180, 703312360, 1406624720]

約数ペア:

[(1, 1406624720), (2, 703312360), (4, 351656180), (5, 281324944), (8, 175828090), (10, 140662472), (16, 87914045), (19, 74032880), (20, 70331236), (38, 37016440), (40, 35165618), (41, 34307920), (76, 18508220), (80, 17582809), (82, 17153960), (95, 14806576), (152, 9254110), (164, 8576980), (190, 7403288), (205, 6861584), (304, 4627055), (328, 4288490), (380, 3701644), (410, 3430792), (656, 2144245), (760, 1850822), (779, 1805680), (820, 1715396), (1520, 925411), (1558, 902840), (1640, 857698), (3116, 451420), (3280, 428849), (3895, 361136), (6232, 225710), (7790, 180568), (12464, 112855), (15580, 90284), (22571, 62320), (31160, 45142)]