18540760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2879}}^1$

素因数の和:2920

約数の個数: 64

約数和(自身を含む): 49766400

約数和(自身を除く): 31225640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 644, 805, 920, 1288, 1610, 2879, 3220, 5758, 6440, 11516, 14395, 20153, 23032, 28790, 40306, 57580, 66217, 80612, 100765, 115160, 132434, 161224, 201530, 264868, 331085, 403060, 463519, 529736, 662170, 806120, 927038, 1324340, 1854076, 2317595, 2648680, 3708152, 4635190, 9270380, 18540760]

約数ペア:

[(1, 18540760), (2, 9270380), (4, 4635190), (5, 3708152), (7, 2648680), (8, 2317595), (10, 1854076), (14, 1324340), (20, 927038), (23, 806120), (28, 662170), (35, 529736), (40, 463519), (46, 403060), (56, 331085), (70, 264868), (92, 201530), (115, 161224), (140, 132434), (161, 115160), (184, 100765), (230, 80612), (280, 66217), (322, 57580), (460, 40306), (644, 28790), (805, 23032), (920, 20153), (1288, 14395), (1610, 11516), (2879, 6440), (3220, 5758)]