20797029275

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{557}}^1\times {\mathrm{12343}}^1$

素因数の和:12932

約数の個数: 36

約数和(自身を含む): 28399026096

約数和(自身を除く): 7601996821

約数列:

[1, 5, 11, 25, 55, 121, 275, 557, 605, 2785, 3025, 6127, 12343, 13925, 30635, 61715, 67397, 135773, 153175, 308575, 336985, 678865, 1493503, 1684925, 3394325, 6875051, 7467515, 34375255, 37337575, 75625561, 171876275, 378127805, 831881171, 1890639025, 4159405855, 20797029275]

約数ペア:

[(1, 20797029275), (5, 4159405855), (11, 1890639025), (25, 831881171), (55, 378127805), (121, 171876275), (275, 75625561), (557, 37337575), (605, 34375255), (2785, 7467515), (3025, 6875051), (6127, 3394325), (12343, 1684925), (13925, 1493503), (30635, 678865), (61715, 336985), (67397, 308575), (135773, 153175)]