20351750

素因数分解:

$2^1\times 5^3\times {\mathrm{127}}^1\times {\mathrm{641}}^1$

素因数の和:785

約数の個数: 32

約数和(自身を含む): 38458368

約数和(自身を除く): 18106618

約数列:

[1, 2, 5, 10, 25, 50, 125, 127, 250, 254, 635, 641, 1270, 1282, 3175, 3205, 6350, 6410, 15875, 16025, 31750, 32050, 80125, 81407, 160250, 162814, 407035, 814070, 2035175, 4070350, 10175875, 20351750]

約数ペア:

[(1, 20351750), (2, 10175875), (5, 4070350), (10, 2035175), (25, 814070), (50, 407035), (125, 162814), (127, 160250), (250, 81407), (254, 80125), (635, 32050), (641, 31750), (1270, 16025), (1282, 15875), (3175, 6410), (3205, 6350)]