1285284520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2471701}}^1$

素因数の和:2471725

約数の個数: 32

約数和(自身を含む): 3114344520

約数和(自身を除く): 1829060000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 2471701, 4943402, 9886804, 12358505, 19773608, 24717010, 32132113, 49434020, 64264226, 98868040, 128528452, 160660565, 257056904, 321321130, 642642260, 1285284520]

約数ペア:

[(1, 1285284520), (2, 642642260), (4, 321321130), (5, 257056904), (8, 160660565), (10, 128528452), (13, 98868040), (20, 64264226), (26, 49434020), (40, 32132113), (52, 24717010), (65, 19773608), (104, 12358505), (130, 9886804), (260, 4943402), (520, 2471701)]