81464548

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{293}}^1$

素因数の和:468

約数の個数: 48

約数和(自身を含む): 160030080

約数和(自身を除く): 78565532

約数列:

[1, 2, 4, 11, 22, 44, 71, 89, 142, 178, 284, 293, 356, 586, 781, 979, 1172, 1562, 1958, 3124, 3223, 3916, 6319, 6446, 12638, 12892, 20803, 25276, 26077, 41606, 52154, 69509, 83212, 104308, 139018, 228833, 278036, 286847, 457666, 573694, 915332, 1147388, 1851467, 3702934, 7405868, 20366137, 40732274, 81464548]

約数ペア:

[(1, 81464548), (2, 40732274), (4, 20366137), (11, 7405868), (22, 3702934), (44, 1851467), (71, 1147388), (89, 915332), (142, 573694), (178, 457666), (284, 286847), (293, 278036), (356, 228833), (586, 139018), (781, 104308), (979, 83212), (1172, 69509), (1562, 52154), (1958, 41606), (3124, 26077), (3223, 25276), (3916, 20803), (6319, 12892), (6446, 12638)]