81055725

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{449}}^1$

素因数の和:574

約数の個数: 48

約数和(自身を含む): 140616000

約数和(自身を除く): 59560275

約数列:

[1, 3, 5, 15, 25, 29, 75, 83, 87, 145, 249, 415, 435, 449, 725, 1245, 1347, 2075, 2175, 2245, 2407, 6225, 6735, 7221, 11225, 12035, 13021, 33675, 36105, 37267, 39063, 60175, 65105, 111801, 180525, 186335, 195315, 325525, 559005, 931675, 976575, 1080743, 2795025, 3242229, 5403715, 16211145, 27018575, 81055725]

約数ペア:

[(1, 81055725), (3, 27018575), (5, 16211145), (15, 5403715), (25, 3242229), (29, 2795025), (75, 1080743), (83, 976575), (87, 931675), (145, 559005), (249, 325525), (415, 195315), (435, 186335), (449, 180525), (725, 111801), (1245, 65105), (1347, 60175), (2075, 39063), (2175, 37267), (2245, 36105), (2407, 33675), (6225, 13021), (6735, 12035), (7221, 11225)]