340520020

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1\times {\mathrm{1697}}^1$

素因数の和:1912

約数の個数: 48

約数和(自身を含む): 730275840

約数和(自身を除く): 389755820

約数列:

[1, 2, 4, 5, 10, 20, 79, 127, 158, 254, 316, 395, 508, 635, 790, 1270, 1580, 1697, 2540, 3394, 6788, 8485, 10033, 16970, 20066, 33940, 40132, 50165, 100330, 134063, 200660, 215519, 268126, 431038, 536252, 670315, 862076, 1077595, 1340630, 2155190, 2681260, 4310380, 17026001, 34052002, 68104004, 85130005, 170260010, 340520020]

約数ペア:

[(1, 340520020), (2, 170260010), (4, 85130005), (5, 68104004), (10, 34052002), (20, 17026001), (79, 4310380), (127, 2681260), (158, 2155190), (254, 1340630), (316, 1077595), (395, 862076), (508, 670315), (635, 536252), (790, 431038), (1270, 268126), (1580, 215519), (1697, 200660), (2540, 134063), (3394, 100330), (6788, 50165), (8485, 40132), (10033, 33940), (16970, 20066)]