856552340

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{409}}^1\times {\mathrm{2137}}^1$

素因数の和:2569

約数の個数: 72

約数和(自身を含む): 2098532520

約数和(自身を除く): 1241980180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 409, 490, 818, 980, 1636, 2045, 2137, 2863, 4090, 4274, 5726, 8180, 8548, 10685, 11452, 14315, 14959, 20041, 21370, 28630, 29918, 40082, 42740, 57260, 59836, 74795, 80164, 100205, 104713, 149590, 200410, 209426, 299180, 400820, 418852, 523565, 874033, 1047130, 1748066, 2094260, 3496132, 4370165, 6118231, 8740330, 12236462, 17480660, 24472924, 30591155, 42827617, 61182310, 85655234, 122364620, 171310468, 214138085, 428276170, 856552340]

約数ペア:

[(1, 856552340), (2, 428276170), (4, 214138085), (5, 171310468), (7, 122364620), (10, 85655234), (14, 61182310), (20, 42827617), (28, 30591155), (35, 24472924), (49, 17480660), (70, 12236462), (98, 8740330), (140, 6118231), (196, 4370165), (245, 3496132), (409, 2094260), (490, 1748066), (818, 1047130), (980, 874033), (1636, 523565), (2045, 418852), (2137, 400820), (2863, 299180), (4090, 209426), (4274, 200410), (5726, 149590), (8180, 104713), (8548, 100205), (10685, 80164), (11452, 74795), (14315, 59836), (14959, 57260), (20041, 42740), (21370, 40082), (28630, 29918)]