20485608

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{127}}^1$

素因数の和:207

約数の個数: 128

約数和(自身を含む): 61931520

約数和(自身を除く): 41445912

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 13, 22, 24, 26, 33, 39, 44, 47, 52, 66, 78, 88, 94, 104, 127, 132, 141, 143, 156, 188, 254, 264, 282, 286, 312, 376, 381, 429, 508, 517, 564, 572, 611, 762, 858, 1016, 1034, 1128, 1144, 1222, 1397, 1524, 1551, 1651, 1716, 1833, 2068, 2444, 2794, 3048, 3102, 3302, 3432, 3666, 4136, 4191, 4888, 4953, 5588, 5969, 6204, 6604, 6721, 7332, 8382, 9906, 11176, 11938, 12408, 13208, 13442, 14664, 16764, 17907, 18161, 19812, 20163, 23876, 26884, 33528, 35814, 36322, 39624, 40326, 47752, 53768, 54483, 65659, 71628, 72644, 77597, 80652, 108966, 131318, 143256, 145288, 155194, 161304, 196977, 217932, 232791, 262636, 310388, 393954, 435864, 465582, 525272, 620776, 787908, 853567, 931164, 1575816, 1707134, 1862328, 2560701, 3414268, 5121402, 6828536, 10242804, 20485608]

約数ペア:

[(1, 20485608), (2, 10242804), (3, 6828536), (4, 5121402), (6, 3414268), (8, 2560701), (11, 1862328), (12, 1707134), (13, 1575816), (22, 931164), (24, 853567), (26, 787908), (33, 620776), (39, 525272), (44, 465582), (47, 435864), (52, 393954), (66, 310388), (78, 262636), (88, 232791), (94, 217932), (104, 196977), (127, 161304), (132, 155194), (141, 145288), (143, 143256), (156, 131318), (188, 108966), (254, 80652), (264, 77597), (282, 72644), (286, 71628), (312, 65659), (376, 54483), (381, 53768), (429, 47752), (508, 40326), (517, 39624), (564, 36322), (572, 35814), (611, 33528), (762, 26884), (858, 23876), (1016, 20163), (1034, 19812), (1128, 18161), (1144, 17907), (1222, 16764), (1397, 14664), (1524, 13442), (1551, 13208), (1651, 12408), (1716, 11938), (1833, 11176), (2068, 9906), (2444, 8382), (2794, 7332), (3048, 6721), (3102, 6604), (3302, 6204), (3432, 5969), (3666, 5588), (4136, 4953), (4191, 4888)]