81409100

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{26261}}^1$

素因数の和:26306

約数の個数: 36

約数和(自身を含む): 182363328

約数和(自身を除く): 100954228

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 155, 310, 620, 775, 1550, 3100, 26261, 52522, 105044, 131305, 262610, 525220, 656525, 814091, 1313050, 1628182, 2626100, 3256364, 4070455, 8140910, 16281820, 20352275, 40704550, 81409100]

約数ペア:

[(1, 81409100), (2, 40704550), (4, 20352275), (5, 16281820), (10, 8140910), (20, 4070455), (25, 3256364), (31, 2626100), (50, 1628182), (62, 1313050), (100, 814091), (124, 656525), (155, 525220), (310, 262610), (620, 131305), (775, 105044), (1550, 52522), (3100, 26261)]