61080400

素因数分解:

$2^4\times 5^2\times {\mathrm{311}}^1\times {\mathrm{491}}^1$

素因数の和:820

約数の個数: 60

約数和(自身を含む): 147517344

約数和(自身を除く): 86436944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 311, 400, 491, 622, 982, 1244, 1555, 1964, 2455, 2488, 3110, 3928, 4910, 4976, 6220, 7775, 7856, 9820, 12275, 12440, 15550, 19640, 24550, 24880, 31100, 39280, 49100, 62200, 98200, 124400, 152701, 196400, 305402, 610804, 763505, 1221608, 1527010, 2443216, 3054020, 3817525, 6108040, 7635050, 12216080, 15270100, 30540200, 61080400]

約数ペア:

[(1, 61080400), (2, 30540200), (4, 15270100), (5, 12216080), (8, 7635050), (10, 6108040), (16, 3817525), (20, 3054020), (25, 2443216), (40, 1527010), (50, 1221608), (80, 763505), (100, 610804), (200, 305402), (311, 196400), (400, 152701), (491, 124400), (622, 98200), (982, 62200), (1244, 49100), (1555, 39280), (1964, 31100), (2455, 24880), (2488, 24550), (3110, 19640), (3928, 15550), (4910, 12440), (4976, 12275), (6220, 9820), (7775, 7856)]