20018856

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{307}}^1$

素因数の和:359

約数の個数: 128

約数和(自身を含む): 62092800

約数和(自身を除く): 42073944

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 13, 19, 22, 24, 26, 33, 38, 39, 44, 52, 57, 66, 76, 78, 88, 104, 114, 132, 143, 152, 156, 209, 228, 247, 264, 286, 307, 312, 418, 429, 456, 494, 572, 614, 627, 741, 836, 858, 921, 988, 1144, 1228, 1254, 1482, 1672, 1716, 1842, 1976, 2456, 2508, 2717, 2964, 3377, 3432, 3684, 3991, 5016, 5434, 5833, 5928, 6754, 7368, 7982, 8151, 10131, 10868, 11666, 11973, 13508, 15964, 16302, 17499, 20262, 21736, 23332, 23946, 27016, 31928, 32604, 34998, 40524, 43901, 46664, 47892, 64163, 65208, 69996, 75829, 81048, 87802, 95784, 128326, 131703, 139992, 151658, 175604, 192489, 227487, 256652, 263406, 303316, 351208, 384978, 454974, 513304, 526812, 606632, 769956, 834119, 909948, 1053624, 1539912, 1668238, 1819896, 2502357, 3336476, 5004714, 6672952, 10009428, 20018856]

約数ペア:

[(1, 20018856), (2, 10009428), (3, 6672952), (4, 5004714), (6, 3336476), (8, 2502357), (11, 1819896), (12, 1668238), (13, 1539912), (19, 1053624), (22, 909948), (24, 834119), (26, 769956), (33, 606632), (38, 526812), (39, 513304), (44, 454974), (52, 384978), (57, 351208), (66, 303316), (76, 263406), (78, 256652), (88, 227487), (104, 192489), (114, 175604), (132, 151658), (143, 139992), (152, 131703), (156, 128326), (209, 95784), (228, 87802), (247, 81048), (264, 75829), (286, 69996), (307, 65208), (312, 64163), (418, 47892), (429, 46664), (456, 43901), (494, 40524), (572, 34998), (614, 32604), (627, 31928), (741, 27016), (836, 23946), (858, 23332), (921, 21736), (988, 20262), (1144, 17499), (1228, 16302), (1254, 15964), (1482, 13508), (1672, 11973), (1716, 11666), (1842, 10868), (1976, 10131), (2456, 8151), (2508, 7982), (2717, 7368), (2964, 6754), (3377, 5928), (3432, 5833), (3684, 5434), (3991, 5016)]