285303280

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1\times {\mathrm{421}}^1$

素因数の和:674

約数の個数: 80

約数和(自身を含む): 683822304

約数和(自身を除く): 398519024

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 197, 215, 344, 394, 421, 430, 688, 788, 842, 860, 985, 1576, 1684, 1720, 1970, 2105, 3152, 3368, 3440, 3940, 4210, 6736, 7880, 8420, 8471, 15760, 16840, 16942, 18103, 33680, 33884, 36206, 42355, 67768, 72412, 82937, 84710, 90515, 135536, 144824, 165874, 169420, 181030, 289648, 331748, 338840, 362060, 414685, 663496, 677680, 724120, 829370, 1326992, 1448240, 1658740, 3317480, 3566291, 6634960, 7132582, 14265164, 17831455, 28530328, 35662910, 57060656, 71325820, 142651640, 285303280]

約数ペア:

[(1, 285303280), (2, 142651640), (4, 71325820), (5, 57060656), (8, 35662910), (10, 28530328), (16, 17831455), (20, 14265164), (40, 7132582), (43, 6634960), (80, 3566291), (86, 3317480), (172, 1658740), (197, 1448240), (215, 1326992), (344, 829370), (394, 724120), (421, 677680), (430, 663496), (688, 414685), (788, 362060), (842, 338840), (860, 331748), (985, 289648), (1576, 181030), (1684, 169420), (1720, 165874), (1970, 144824), (2105, 135536), (3152, 90515), (3368, 84710), (3440, 82937), (3940, 72412), (4210, 67768), (6736, 42355), (7880, 36206), (8420, 33884), (8471, 33680), (15760, 18103), (16840, 16942)]