1290575

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2$

素因数の和:72

約数の個数: 36

約数和(自身を含む): 1984248

約数和(自身を除く): 693673

約数列:

[1, 5, 11, 13, 19, 25, 55, 65, 95, 143, 209, 247, 275, 325, 361, 475, 715, 1045, 1235, 1805, 2717, 3575, 3971, 4693, 5225, 6175, 9025, 13585, 19855, 23465, 51623, 67925, 99275, 117325, 258115, 1290575]

約数ペア:

[(1, 1290575), (5, 258115), (11, 117325), (13, 99275), (19, 67925), (25, 51623), (55, 23465), (65, 19855), (95, 13585), (143, 9025), (209, 6175), (247, 5225), (275, 4693), (325, 3971), (361, 3575), (475, 2717), (715, 1805), (1045, 1235)]