19734260

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1549}}^1$

素因数の和:1585

約数の個数: 72

約数和(自身を含む): 51949800

約数和(自身を除く): 32215540

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, 245, 260, 364, 455, 490, 637, 910, 980, 1274, 1549, 1820, 2548, 3098, 3185, 6196, 6370, 7745, 10843, 12740, 15490, 20137, 21686, 30980, 40274, 43372, 54215, 75901, 80548, 100685, 108430, 140959, 151802, 201370, 216860, 281918, 303604, 379505, 402740, 563836, 704795, 759010, 986713, 1409590, 1518020, 1973426, 2819180, 3946852, 4933565, 9867130, 19734260]

約数ペア:

[(1, 19734260), (2, 9867130), (4, 4933565), (5, 3946852), (7, 2819180), (10, 1973426), (13, 1518020), (14, 1409590), (20, 986713), (26, 759010), (28, 704795), (35, 563836), (49, 402740), (52, 379505), (65, 303604), (70, 281918), (91, 216860), (98, 201370), (130, 151802), (140, 140959), (182, 108430), (196, 100685), (245, 80548), (260, 75901), (364, 54215), (455, 43372), (490, 40274), (637, 30980), (910, 21686), (980, 20137), (1274, 15490), (1549, 12740), (1820, 10843), (2548, 7745), (3098, 6370), (3185, 6196)]