81472400

素因数分解:

$2^4\times 5^2\times {\mathrm{353}}^1\times {\mathrm{577}}^1$

素因数の和:948

約数の個数: 60

約数和(自身を含む): 196632132

約数和(自身を除く): 115159732

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 353, 400, 577, 706, 1154, 1412, 1765, 2308, 2824, 2885, 3530, 4616, 5648, 5770, 7060, 8825, 9232, 11540, 14120, 14425, 17650, 23080, 28240, 28850, 35300, 46160, 57700, 70600, 115400, 141200, 203681, 230800, 407362, 814724, 1018405, 1629448, 2036810, 3258896, 4073620, 5092025, 8147240, 10184050, 16294480, 20368100, 40736200, 81472400]

約数ペア:

[(1, 81472400), (2, 40736200), (4, 20368100), (5, 16294480), (8, 10184050), (10, 8147240), (16, 5092025), (20, 4073620), (25, 3258896), (40, 2036810), (50, 1629448), (80, 1018405), (100, 814724), (200, 407362), (353, 230800), (400, 203681), (577, 141200), (706, 115400), (1154, 70600), (1412, 57700), (1765, 46160), (2308, 35300), (2824, 28850), (2885, 28240), (3530, 23080), (4616, 17650), (5648, 14425), (5770, 14120), (7060, 11540), (8825, 9232)]