20702779972

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1\times {\mathrm{4289}}^1$

素因数の和:4481

約数の個数: 96

約数和(自身を含む): 43912028160

約数和(自身を除く): 23209248188

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 67, 83, 124, 134, 166, 217, 268, 332, 434, 469, 581, 868, 938, 1162, 1876, 2077, 2324, 2573, 4154, 4289, 5146, 5561, 8308, 8578, 10292, 11122, 14539, 17156, 18011, 22244, 29078, 30023, 36022, 38927, 58156, 60046, 72044, 77854, 120092, 132959, 155708, 172391, 265918, 287363, 344782, 355987, 531836, 574726, 689564, 711974, 930713, 1149452, 1206737, 1423948, 1861426, 2011541, 2413474, 2491909, 3722852, 4023082, 4826948, 4983818, 8046164, 8908253, 9967636, 11035597, 17816506, 22071194, 23851129, 35633012, 44142388, 47702258, 62357771, 77249179, 95404516, 124715542, 154498358, 166957903, 249431084, 308996716, 333915806, 667831612, 739384999, 1478769998, 2957539996, 5175694993, 10351389986, 20702779972]

約数ペア:

[(1, 20702779972), (2, 10351389986), (4, 5175694993), (7, 2957539996), (14, 1478769998), (28, 739384999), (31, 667831612), (62, 333915806), (67, 308996716), (83, 249431084), (124, 166957903), (134, 154498358), (166, 124715542), (217, 95404516), (268, 77249179), (332, 62357771), (434, 47702258), (469, 44142388), (581, 35633012), (868, 23851129), (938, 22071194), (1162, 17816506), (1876, 11035597), (2077, 9967636), (2324, 8908253), (2573, 8046164), (4154, 4983818), (4289, 4826948), (5146, 4023082), (5561, 3722852), (8308, 2491909), (8578, 2413474), (10292, 2011541), (11122, 1861426), (14539, 1423948), (17156, 1206737), (18011, 1149452), (22244, 930713), (29078, 711974), (30023, 689564), (36022, 574726), (38927, 531836), (58156, 355987), (60046, 344782), (72044, 287363), (77854, 265918), (120092, 172391), (132959, 155708)]