1254890

素因数分解:

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

素因数の和:231

約数の個数: 48

約数和(自身を含む): 2844072

約数和(自身を除く): 1589182

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 49, 65, 70, 91, 98, 130, 182, 197, 245, 394, 455, 490, 637, 910, 985, 1274, 1379, 1970, 2561, 2758, 3185, 5122, 6370, 6895, 9653, 12805, 13790, 17927, 19306, 25610, 35854, 48265, 89635, 96530, 125489, 179270, 250978, 627445, 1254890]

約数ペア:

[(1, 1254890), (2, 627445), (5, 250978), (7, 179270), (10, 125489), (13, 96530), (14, 89635), (26, 48265), (35, 35854), (49, 25610), (65, 19306), (70, 17927), (91, 13790), (98, 12805), (130, 9653), (182, 6895), (197, 6370), (245, 5122), (394, 3185), (455, 2758), (490, 2561), (637, 1970), (910, 1379), (985, 1274)]