18770125

素因数分解:

$5^3\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{73}}^1$

素因数の和:127

約数の個数: 48

約数和(自身を含む): 27636336

約数和(自身を除く): 8866211

約数列:

[1, 5, 11, 17, 25, 55, 73, 85, 121, 125, 187, 275, 365, 425, 605, 803, 935, 1241, 1375, 1825, 2057, 2125, 3025, 4015, 4675, 6205, 8833, 9125, 10285, 13651, 15125, 20075, 23375, 31025, 44165, 51425, 68255, 100375, 150161, 155125, 220825, 257125, 341275, 750805, 1104125, 1706375, 3754025, 18770125]

約数ペア:

[(1, 18770125), (5, 3754025), (11, 1706375), (17, 1104125), (25, 750805), (55, 341275), (73, 257125), (85, 220825), (121, 155125), (125, 150161), (187, 100375), (275, 68255), (365, 51425), (425, 44165), (605, 31025), (803, 23375), (935, 20075), (1241, 15125), (1375, 13651), (1825, 10285), (2057, 9125), (2125, 8833), (3025, 6205), (4015, 4675)]