156630640

素因数分解:

$2^4\times 5^1\times {\mathrm{409}}^1\times {\mathrm{4787}}^1$

素因数の和:5209

約数の個数: 40

約数和(自身を含む): 365132880

約数和(自身を除く): 208502240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 409, 818, 1636, 2045, 3272, 4090, 4787, 6544, 8180, 9574, 16360, 19148, 23935, 32720, 38296, 47870, 76592, 95740, 191480, 382960, 1957883, 3915766, 7831532, 9789415, 15663064, 19578830, 31326128, 39157660, 78315320, 156630640]

約数ペア:

[(1, 156630640), (2, 78315320), (4, 39157660), (5, 31326128), (8, 19578830), (10, 15663064), (16, 9789415), (20, 7831532), (40, 3915766), (80, 1957883), (409, 382960), (818, 191480), (1636, 95740), (2045, 76592), (3272, 47870), (4090, 38296), (4787, 32720), (6544, 23935), (8180, 19148), (9574, 16360)]