68937680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{479}}^1$

素因数の和:756

約数の個数: 80

約数和(自身を含む): 184273920

約数和(自身を除く): 115336240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 257, 280, 479, 514, 560, 958, 1028, 1285, 1799, 1916, 2056, 2395, 2570, 3353, 3598, 3832, 4112, 4790, 5140, 6706, 7196, 7664, 8995, 9580, 10280, 13412, 14392, 16765, 17990, 19160, 20560, 26824, 28784, 33530, 35980, 38320, 53648, 67060, 71960, 123103, 134120, 143920, 246206, 268240, 492412, 615515, 861721, 984824, 1231030, 1723442, 1969648, 2462060, 3446884, 4308605, 4924120, 6893768, 8617210, 9848240, 13787536, 17234420, 34468840, 68937680]

約数ペア:

[(1, 68937680), (2, 34468840), (4, 17234420), (5, 13787536), (7, 9848240), (8, 8617210), (10, 6893768), (14, 4924120), (16, 4308605), (20, 3446884), (28, 2462060), (35, 1969648), (40, 1723442), (56, 1231030), (70, 984824), (80, 861721), (112, 615515), (140, 492412), (257, 268240), (280, 246206), (479, 143920), (514, 134120), (560, 123103), (958, 71960), (1028, 67060), (1285, 53648), (1799, 38320), (1916, 35980), (2056, 33530), (2395, 28784), (2570, 26824), (3353, 20560), (3598, 19160), (3832, 17990), (4112, 16765), (4790, 14392), (5140, 13412), (6706, 10280), (7196, 9580), (7664, 8995)]