78317260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{7879}}^1$

素因数の和:7966

約数の個数: 48

約数和(自身を含む): 190632960

約数和(自身を除く): 112315700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 7879, 9940, 15758, 31516, 39395, 55153, 78790, 110306, 157580, 220612, 275765, 551530, 559409, 1103060, 1118818, 2237636, 2797045, 3915863, 5594090, 7831726, 11188180, 15663452, 19579315, 39158630, 78317260]

約数ペア:

[(1, 78317260), (2, 39158630), (4, 19579315), (5, 15663452), (7, 11188180), (10, 7831726), (14, 5594090), (20, 3915863), (28, 2797045), (35, 2237636), (70, 1118818), (71, 1103060), (140, 559409), (142, 551530), (284, 275765), (355, 220612), (497, 157580), (710, 110306), (994, 78790), (1420, 55153), (1988, 39395), (2485, 31516), (4970, 15758), (7879, 9940)]