65382820

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{811}}^1$

素因数の和:988

約数の個数: 48

約数和(自身を含む): 143236800

約数和(自身を除く): 77853980

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 139, 145, 278, 290, 556, 580, 695, 811, 1390, 1622, 2780, 3244, 4031, 4055, 8062, 8110, 16124, 16220, 20155, 23519, 40310, 47038, 80620, 94076, 112729, 117595, 225458, 235190, 450916, 470380, 563645, 1127290, 2254580, 3269141, 6538282, 13076564, 16345705, 32691410, 65382820]

約数ペア:

[(1, 65382820), (2, 32691410), (4, 16345705), (5, 13076564), (10, 6538282), (20, 3269141), (29, 2254580), (58, 1127290), (116, 563645), (139, 470380), (145, 450916), (278, 235190), (290, 225458), (556, 117595), (580, 112729), (695, 94076), (811, 80620), (1390, 47038), (1622, 40310), (2780, 23519), (3244, 20155), (4031, 16220), (4055, 16124), (8062, 8110)]