640507518

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1033}}^1$

素因数の和:1111

約数の個数: 144

約数和(自身を含む): 1746922320

約数和(自身を除く): 1106414802

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 37, 38, 42, 49, 57, 63, 74, 98, 111, 114, 126, 133, 147, 171, 222, 259, 266, 294, 333, 342, 399, 441, 518, 666, 703, 777, 798, 882, 931, 1033, 1197, 1406, 1554, 1813, 1862, 2066, 2109, 2331, 2394, 2793, 3099, 3626, 4218, 4662, 4921, 5439, 5586, 6198, 6327, 7231, 8379, 9297, 9842, 10878, 12654, 14462, 14763, 16317, 16758, 18594, 19627, 21693, 29526, 32634, 34447, 38221, 39254, 43386, 44289, 50617, 58881, 65079, 68894, 76442, 88578, 101234, 103341, 114663, 117762, 130158, 137389, 151851, 176643, 206682, 229326, 267547, 274778, 303702, 310023, 343989, 353286, 412167, 455553, 535094, 620046, 687978, 726199, 802641, 824334, 911106, 961723, 1236501, 1452398, 1605282, 1872829, 1923446, 2178597, 2407923, 2473002, 2885169, 3745658, 4357194, 4815846, 5083393, 5618487, 5770338, 6535791, 8655507, 10166786, 11236974, 13071582, 15250179, 16855461, 17311014, 30500358, 33710922, 35583751, 45750537, 71167502, 91501074, 106751253, 213502506, 320253759, 640507518]

約数ペア:

[(1, 640507518), (2, 320253759), (3, 213502506), (6, 106751253), (7, 91501074), (9, 71167502), (14, 45750537), (18, 35583751), (19, 33710922), (21, 30500358), (37, 17311014), (38, 16855461), (42, 15250179), (49, 13071582), (57, 11236974), (63, 10166786), (74, 8655507), (98, 6535791), (111, 5770338), (114, 5618487), (126, 5083393), (133, 4815846), (147, 4357194), (171, 3745658), (222, 2885169), (259, 2473002), (266, 2407923), (294, 2178597), (333, 1923446), (342, 1872829), (399, 1605282), (441, 1452398), (518, 1236501), (666, 961723), (703, 911106), (777, 824334), (798, 802641), (882, 726199), (931, 687978), (1033, 620046), (1197, 535094), (1406, 455553), (1554, 412167), (1813, 353286), (1862, 343989), (2066, 310023), (2109, 303702), (2331, 274778), (2394, 267547), (2793, 229326), (3099, 206682), (3626, 176643), (4218, 151851), (4662, 137389), (4921, 130158), (5439, 117762), (5586, 114663), (6198, 103341), (6327, 101234), (7231, 88578), (8379, 76442), (9297, 68894), (9842, 65079), (10878, 58881), (12654, 50617), (14462, 44289), (14763, 43386), (16317, 39254), (16758, 38221), (18594, 34447), (19627, 32634), (21693, 29526)]