64555825

素因数分解:

$5^2\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{311}}^1$

素因数の和:382

約数の個数: 36

約数和(自身を含む): 88440768

約数和(自身を除く): 23884943

約数列:

[1, 5, 19, 23, 25, 95, 115, 311, 361, 437, 475, 575, 1555, 1805, 2185, 5909, 7153, 7775, 8303, 9025, 10925, 29545, 35765, 41515, 112271, 135907, 147725, 178825, 207575, 561355, 679535, 2582233, 2806775, 3397675, 12911165, 64555825]

約数ペア:

[(1, 64555825), (5, 12911165), (19, 3397675), (23, 2806775), (25, 2582233), (95, 679535), (115, 561355), (311, 207575), (361, 178825), (437, 147725), (475, 135907), (575, 112271), (1555, 41515), (1805, 35765), (2185, 29545), (5909, 10925), (7153, 9025), (7775, 8303)]