81513458

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{1051}}^1$

素因数の和:1242

約数の個数: 32

約数和(自身を含む): 139621440

約数和(自身を除く): 58107982

約数列:

[1, 2, 13, 19, 26, 38, 157, 247, 314, 494, 1051, 2041, 2102, 2983, 4082, 5966, 13663, 19969, 27326, 38779, 39938, 77558, 165007, 259597, 330014, 519194, 2145091, 3135133, 4290182, 6270266, 40756729, 81513458]

約数ペア:

[(1, 81513458), (2, 40756729), (13, 6270266), (19, 4290182), (26, 3135133), (38, 2145091), (157, 519194), (247, 330014), (314, 259597), (494, 165007), (1051, 77558), (2041, 39938), (2102, 38779), (2983, 27326), (4082, 19969), (5966, 13663)]