66780656

素因数分解:

$2^4\times {\mathrm{131}}^1\times {\mathrm{151}}^1\times {\mathrm{211}}^1$

素因数の和:501

約数の個数: 40

約数和(自身を含む): 131860608

約数和(自身を除く): 65079952

約数列:

[1, 2, 4, 8, 16, 131, 151, 211, 262, 302, 422, 524, 604, 844, 1048, 1208, 1688, 2096, 2416, 3376, 19781, 27641, 31861, 39562, 55282, 63722, 79124, 110564, 127444, 158248, 221128, 254888, 316496, 442256, 509776, 4173791, 8347582, 16695164, 33390328, 66780656]

約数ペア:

[(1, 66780656), (2, 33390328), (4, 16695164), (8, 8347582), (16, 4173791), (131, 509776), (151, 442256), (211, 316496), (262, 254888), (302, 221128), (422, 158248), (524, 127444), (604, 110564), (844, 79124), (1048, 63722), (1208, 55282), (1688, 39562), (2096, 31861), (2416, 27641), (3376, 19781)]