81079000

素因数分解:

$2^3\times 5^3\times {\mathrm{89}}^1\times {\mathrm{911}}^1$

素因数の和:1021

約数の個数: 64

約数和(自身を含む): 192067200

約数和(自身を除く): 110988200

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 89, 100, 125, 178, 200, 250, 356, 445, 500, 712, 890, 911, 1000, 1780, 1822, 2225, 3560, 3644, 4450, 4555, 7288, 8900, 9110, 11125, 17800, 18220, 22250, 22775, 36440, 44500, 45550, 81079, 89000, 91100, 113875, 162158, 182200, 227750, 324316, 405395, 455500, 648632, 810790, 911000, 1621580, 2026975, 3243160, 4053950, 8107900, 10134875, 16215800, 20269750, 40539500, 81079000]

約数ペア:

[(1, 81079000), (2, 40539500), (4, 20269750), (5, 16215800), (8, 10134875), (10, 8107900), (20, 4053950), (25, 3243160), (40, 2026975), (50, 1621580), (89, 911000), (100, 810790), (125, 648632), (178, 455500), (200, 405395), (250, 324316), (356, 227750), (445, 182200), (500, 162158), (712, 113875), (890, 91100), (911, 89000), (1000, 81079), (1780, 45550), (1822, 44500), (2225, 36440), (3560, 22775), (3644, 22250), (4450, 18220), (4555, 17800), (7288, 11125), (8900, 9110)]