81489746

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{293}}^1\times {\mathrm{563}}^1$

素因数の和:890

約数の個数: 32

約数和(自身を含む): 139285440

約数和(自身を除く): 57795694

約数列:

[1, 2, 13, 19, 26, 38, 247, 293, 494, 563, 586, 1126, 3809, 5567, 7319, 7618, 10697, 11134, 14638, 21394, 72371, 139061, 144742, 164959, 278122, 329918, 2144467, 3134221, 4288934, 6268442, 40744873, 81489746]

約数ペア:

[(1, 81489746), (2, 40744873), (13, 6268442), (19, 4288934), (26, 3134221), (38, 2144467), (247, 329918), (293, 278122), (494, 164959), (563, 144742), (586, 139061), (1126, 72371), (3809, 21394), (5567, 14638), (7319, 11134), (7618, 10697)]