257319020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{9623}}^1$

素因数の和:9830

約数の個数: 48

約数和(自身を含む): 620863488

約数和(自身を除く): 363544468

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 191, 382, 764, 955, 1337, 1910, 2674, 3820, 5348, 6685, 9623, 13370, 19246, 26740, 38492, 48115, 67361, 96230, 134722, 192460, 269444, 336805, 673610, 1347220, 1837993, 3675986, 7351972, 9189965, 12865951, 18379930, 25731902, 36759860, 51463804, 64329755, 128659510, 257319020]

約数ペア:

[(1, 257319020), (2, 128659510), (4, 64329755), (5, 51463804), (7, 36759860), (10, 25731902), (14, 18379930), (20, 12865951), (28, 9189965), (35, 7351972), (70, 3675986), (140, 1837993), (191, 1347220), (382, 673610), (764, 336805), (955, 269444), (1337, 192460), (1910, 134722), (2674, 96230), (3820, 67361), (5348, 48115), (6685, 38492), (9623, 26740), (13370, 19246)]