2519780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{349}}^1$

素因数の和:396

約数の個数: 36

約数和(自身を含む): 5600700

約数和(自身を除く): 3080920

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 349, 361, 380, 698, 722, 1396, 1444, 1745, 1805, 3490, 3610, 6631, 6980, 7220, 13262, 26524, 33155, 66310, 125989, 132620, 251978, 503956, 629945, 1259890, 2519780]

約数ペア:

[(1, 2519780), (2, 1259890), (4, 629945), (5, 503956), (10, 251978), (19, 132620), (20, 125989), (38, 66310), (76, 33155), (95, 26524), (190, 13262), (349, 7220), (361, 6980), (380, 6631), (698, 3610), (722, 3490), (1396, 1805), (1444, 1745)]