20303970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{199}}^1$

素因数の和:407

約数の個数: 64

約数和(自身を含む): 51840000

約数和(自身を除く): 31536030

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 57, 95, 114, 179, 190, 199, 285, 358, 398, 537, 570, 597, 895, 995, 1074, 1194, 1790, 1990, 2685, 2985, 3401, 3781, 5370, 5970, 6802, 7562, 10203, 11343, 17005, 18905, 20406, 22686, 34010, 35621, 37810, 51015, 56715, 71242, 102030, 106863, 113430, 178105, 213726, 356210, 534315, 676799, 1068630, 1353598, 2030397, 3383995, 4060794, 6767990, 10151985, 20303970]

約数ペア:

[(1, 20303970), (2, 10151985), (3, 6767990), (5, 4060794), (6, 3383995), (10, 2030397), (15, 1353598), (19, 1068630), (30, 676799), (38, 534315), (57, 356210), (95, 213726), (114, 178105), (179, 113430), (190, 106863), (199, 102030), (285, 71242), (358, 56715), (398, 51015), (537, 37810), (570, 35621), (597, 34010), (895, 22686), (995, 20406), (1074, 18905), (1194, 17005), (1790, 11343), (1990, 10203), (2685, 7562), (2985, 6802), (3401, 5970), (3781, 5370)]