20515690515

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{911201}}^1$

素因数の和:911307

約数の個数: 32

約数和(自身を含む): 34990156800

約数和(自身を除く): 14474466285

約数列:

[1, 3, 5, 15, 19, 57, 79, 95, 237, 285, 395, 1185, 1501, 4503, 7505, 22515, 911201, 2733603, 4556005, 13668015, 17312819, 51938457, 71984879, 86564095, 215954637, 259692285, 359924395, 1079773185, 1367712701, 4103138103, 6838563505, 20515690515]

約数ペア:

[(1, 20515690515), (3, 6838563505), (5, 4103138103), (15, 1367712701), (19, 1079773185), (57, 359924395), (79, 259692285), (95, 215954637), (237, 86564095), (285, 71984879), (395, 51938457), (1185, 17312819), (1501, 13668015), (4503, 4556005), (7505, 2733603), (22515, 911201)]