20512409088

素因数分解:

$2^9\times 3^1\times {\mathrm{197}}^1\times {\mathrm{67789}}^1$

素因数の和:68007

約数の個数: 80

約数和(自身を含む): 54924542640

約数和(自身を除く): 34412133552

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 197, 256, 384, 394, 512, 591, 768, 788, 1182, 1536, 1576, 2364, 3152, 4728, 6304, 9456, 12608, 18912, 25216, 37824, 50432, 67789, 75648, 100864, 135578, 151296, 203367, 271156, 302592, 406734, 542312, 813468, 1084624, 1626936, 2169248, 3253872, 4338496, 6507744, 8676992, 13015488, 13354433, 17353984, 26030976, 26708866, 34707968, 40063299, 52061952, 53417732, 80126598, 104123904, 106835464, 160253196, 213670928, 320506392, 427341856, 641012784, 854683712, 1282025568, 1709367424, 2564051136, 3418734848, 5128102272, 6837469696, 10256204544, 20512409088]

約数ペア:

[(1, 20512409088), (2, 10256204544), (3, 6837469696), (4, 5128102272), (6, 3418734848), (8, 2564051136), (12, 1709367424), (16, 1282025568), (24, 854683712), (32, 641012784), (48, 427341856), (64, 320506392), (96, 213670928), (128, 160253196), (192, 106835464), (197, 104123904), (256, 80126598), (384, 53417732), (394, 52061952), (512, 40063299), (591, 34707968), (768, 26708866), (788, 26030976), (1182, 17353984), (1536, 13354433), (1576, 13015488), (2364, 8676992), (3152, 6507744), (4728, 4338496), (6304, 3253872), (9456, 2169248), (12608, 1626936), (18912, 1084624), (25216, 813468), (37824, 542312), (50432, 406734), (67789, 302592), (75648, 271156), (100864, 203367), (135578, 151296)]