19646704

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{431}}^1$

素因数の和:494

約数の個数: 80

約数和(自身を含む): 48854016

約数和(自身を除く): 29207312

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 37, 44, 56, 74, 77, 88, 112, 148, 154, 176, 259, 296, 308, 407, 431, 518, 592, 616, 814, 862, 1036, 1232, 1628, 1724, 2072, 2849, 3017, 3256, 3448, 4144, 4741, 5698, 6034, 6512, 6896, 9482, 11396, 12068, 15947, 18964, 22792, 24136, 31894, 33187, 37928, 45584, 48272, 63788, 66374, 75856, 111629, 127576, 132748, 175417, 223258, 255152, 265496, 350834, 446516, 530992, 701668, 893032, 1227919, 1403336, 1786064, 2455838, 2806672, 4911676, 9823352, 19646704]

約数ペア:

[(1, 19646704), (2, 9823352), (4, 4911676), (7, 2806672), (8, 2455838), (11, 1786064), (14, 1403336), (16, 1227919), (22, 893032), (28, 701668), (37, 530992), (44, 446516), (56, 350834), (74, 265496), (77, 255152), (88, 223258), (112, 175417), (148, 132748), (154, 127576), (176, 111629), (259, 75856), (296, 66374), (308, 63788), (407, 48272), (431, 45584), (518, 37928), (592, 33187), (616, 31894), (814, 24136), (862, 22792), (1036, 18964), (1232, 15947), (1628, 12068), (1724, 11396), (2072, 9482), (2849, 6896), (3017, 6512), (3256, 6034), (3448, 5698), (4144, 4741)]