208335078679

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{227}}^1\times {\mathrm{17123}}^1$

素因数の和:17420

約数の個数: 64

約数和(自身を含む): 279858216960

約数和(自身を除く): 71523138281

約数列:

[1, 7, 13, 19, 31, 91, 133, 217, 227, 247, 403, 589, 1589, 1729, 2821, 2951, 4123, 4313, 7037, 7657, 17123, 20657, 30191, 49259, 53599, 56069, 91481, 119861, 133703, 222599, 325337, 392483, 530813, 640367, 935921, 1558193, 1738139, 2277359, 3715691, 3886921, 4229381, 6900569, 10085447, 12166973, 27208447, 29605667, 48303983, 50529973, 70598129, 73851499, 120494551, 131110811, 353709811, 516960493, 843461857, 917775677, 960069487, 1566429163, 2289396469, 6720486409, 10965004141, 16025775283, 29762154097, 208335078679]

約数ペア:

[(1, 208335078679), (7, 29762154097), (13, 16025775283), (19, 10965004141), (31, 6720486409), (91, 2289396469), (133, 1566429163), (217, 960069487), (227, 917775677), (247, 843461857), (403, 516960493), (589, 353709811), (1589, 131110811), (1729, 120494551), (2821, 73851499), (2951, 70598129), (4123, 50529973), (4313, 48303983), (7037, 29605667), (7657, 27208447), (17123, 12166973), (20657, 10085447), (30191, 6900569), (49259, 4229381), (53599, 3886921), (56069, 3715691), (91481, 2277359), (119861, 1738139), (133703, 1558193), (222599, 935921), (325337, 640367), (392483, 530813)]