19410020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{7297}}^1$

素因数の和:7332

約数の個数: 48

約数和(自身を含む): 49042560

約数和(自身を除く): 29632540

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 7297, 14594, 29188, 36485, 51079, 72970, 102158, 138643, 145940, 204316, 255395, 277286, 510790, 554572, 693215, 970501, 1021580, 1386430, 1941002, 2772860, 3882004, 4852505, 9705010, 19410020]

約数ペア:

[(1, 19410020), (2, 9705010), (4, 4852505), (5, 3882004), (7, 2772860), (10, 1941002), (14, 1386430), (19, 1021580), (20, 970501), (28, 693215), (35, 554572), (38, 510790), (70, 277286), (76, 255395), (95, 204316), (133, 145940), (140, 138643), (190, 102158), (266, 72970), (380, 51079), (532, 36485), (665, 29188), (1330, 14594), (2660, 7297)]