20731623976

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{80849}}^1$

素因数の和:81122

約数の個数: 64

約数和(自身を含む): 46957680000

約数和(自身を除く): 26226056024

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 241, 266, 482, 532, 964, 1064, 1687, 1928, 3374, 4579, 6748, 9158, 13496, 18316, 32053, 36632, 64106, 80849, 128212, 161698, 256424, 323396, 565943, 646792, 1131886, 1536131, 2263772, 3072262, 4527544, 6144524, 10752917, 12289048, 19484609, 21505834, 38969218, 43011668, 77938436, 86023336, 136392263, 155876872, 272784526, 370207571, 545569052, 740415142, 1091138104, 1480830284, 2591452997, 2961660568, 5182905994, 10365811988, 20731623976]

約数ペア:

[(1, 20731623976), (2, 10365811988), (4, 5182905994), (7, 2961660568), (8, 2591452997), (14, 1480830284), (19, 1091138104), (28, 740415142), (38, 545569052), (56, 370207571), (76, 272784526), (133, 155876872), (152, 136392263), (241, 86023336), (266, 77938436), (482, 43011668), (532, 38969218), (964, 21505834), (1064, 19484609), (1687, 12289048), (1928, 10752917), (3374, 6144524), (4579, 4527544), (6748, 3072262), (9158, 2263772), (13496, 1536131), (18316, 1131886), (32053, 646792), (36632, 565943), (64106, 323396), (80849, 256424), (128212, 161698)]