81213890

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{199}}^1\times {\mathrm{1103}}^1$

素因数の和:1346

約数の個数: 32

約数和(自身を含む): 151027200

約数和(自身を除く): 69813310

約数列:

[1, 2, 5, 10, 37, 74, 185, 199, 370, 398, 995, 1103, 1990, 2206, 5515, 7363, 11030, 14726, 36815, 40811, 73630, 81622, 204055, 219497, 408110, 438994, 1097485, 2194970, 8121389, 16242778, 40606945, 81213890]

約数ペア:

[(1, 81213890), (2, 40606945), (5, 16242778), (10, 8121389), (37, 2194970), (74, 1097485), (185, 438994), (199, 408110), (370, 219497), (398, 204055), (995, 81622), (1103, 73630), (1990, 40811), (2206, 36815), (5515, 14726), (7363, 11030)]