978042989

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1\times {\mathrm{223}}^1$

素因数の和:430

約数の個数: 48

約数和(自身を含む): 1274757120

約数和(自身を除く): 296714131

約数列:

[1, 7, 11, 49, 77, 79, 103, 223, 539, 553, 721, 869, 1133, 1561, 2453, 3871, 5047, 6083, 7931, 8137, 10927, 17171, 17617, 22969, 42581, 55517, 56959, 89507, 120197, 123319, 160783, 193787, 252659, 398713, 626549, 863233, 1125481, 1356509, 1768613, 1814551, 4385843, 9495563, 12380291, 12701857, 19960061, 88912999, 139720427, 978042989]

約数ペア:

[(1, 978042989), (7, 139720427), (11, 88912999), (49, 19960061), (77, 12701857), (79, 12380291), (103, 9495563), (223, 4385843), (539, 1814551), (553, 1768613), (721, 1356509), (869, 1125481), (1133, 863233), (1561, 626549), (2453, 398713), (3871, 252659), (5047, 193787), (6083, 160783), (7931, 123319), (8137, 120197), (10927, 89507), (17171, 56959), (17617, 55517), (22969, 42581)]