281256990

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{12517}}^1$

素因数の和:12641

約数の個数: 64

約数和(自身を含む): 778719744

約数和(自身を除く): 497462754

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 107, 210, 214, 321, 535, 642, 749, 1070, 1498, 1605, 2247, 3210, 3745, 4494, 7490, 11235, 12517, 22470, 25034, 37551, 62585, 75102, 87619, 125170, 175238, 187755, 262857, 375510, 438095, 525714, 876190, 1314285, 1339319, 2628570, 2678638, 4017957, 6696595, 8035914, 9375233, 13393190, 18750466, 20089785, 28125699, 40179570, 46876165, 56251398, 93752330, 140628495, 281256990]

約数ペア:

[(1, 281256990), (2, 140628495), (3, 93752330), (5, 56251398), (6, 46876165), (7, 40179570), (10, 28125699), (14, 20089785), (15, 18750466), (21, 13393190), (30, 9375233), (35, 8035914), (42, 6696595), (70, 4017957), (105, 2678638), (107, 2628570), (210, 1339319), (214, 1314285), (321, 876190), (535, 525714), (642, 438095), (749, 375510), (1070, 262857), (1498, 187755), (1605, 175238), (2247, 125170), (3210, 87619), (3745, 75102), (4494, 62585), (7490, 37551), (11235, 25034), (12517, 22470)]