2509780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{197}}^1$

素因数の和:233

約数の個数: 72

約数和(自身を含む): 6636168

約数和(自身を除く): 4126388

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 197, 245, 260, 364, 394, 455, 490, 637, 788, 910, 980, 985, 1274, 1379, 1820, 1970, 2548, 2561, 2758, 3185, 3940, 5122, 5516, 6370, 6895, 9653, 10244, 12740, 12805, 13790, 17927, 19306, 25610, 27580, 35854, 38612, 48265, 51220, 71708, 89635, 96530, 125489, 179270, 193060, 250978, 358540, 501956, 627445, 1254890, 2509780]

約数ペア:

[(1, 2509780), (2, 1254890), (4, 627445), (5, 501956), (7, 358540), (10, 250978), (13, 193060), (14, 179270), (20, 125489), (26, 96530), (28, 89635), (35, 71708), (49, 51220), (52, 48265), (65, 38612), (70, 35854), (91, 27580), (98, 25610), (130, 19306), (140, 17927), (182, 13790), (196, 12805), (197, 12740), (245, 10244), (260, 9653), (364, 6895), (394, 6370), (455, 5516), (490, 5122), (637, 3940), (788, 3185), (910, 2758), (980, 2561), (985, 2548), (1274, 1970), (1379, 1820)]