18984657424

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{87587}}^1$

素因数の和:87668

約数の個数: 80

約数和(自身を含む): 41705902080

約数和(自身を除く): 22721244656

約数列:

[1, 2, 4, 8, 16, 19, 23, 31, 38, 46, 62, 76, 92, 124, 152, 184, 248, 304, 368, 437, 496, 589, 713, 874, 1178, 1426, 1748, 2356, 2852, 3496, 4712, 5704, 6992, 9424, 11408, 13547, 27094, 54188, 87587, 108376, 175174, 216752, 350348, 700696, 1401392, 1664153, 2014501, 2715197, 3328306, 4029002, 5430394, 6656612, 8058004, 10860788, 13313224, 16116008, 21721576, 26626448, 32232016, 38275519, 43443152, 51588743, 62449531, 76551038, 103177486, 124899062, 153102076, 206354972, 249798124, 306204152, 412709944, 499596248, 612408304, 825419888, 999192496, 1186541089, 2373082178, 4746164356, 9492328712, 18984657424]

約数ペア:

[(1, 18984657424), (2, 9492328712), (4, 4746164356), (8, 2373082178), (16, 1186541089), (19, 999192496), (23, 825419888), (31, 612408304), (38, 499596248), (46, 412709944), (62, 306204152), (76, 249798124), (92, 206354972), (124, 153102076), (152, 124899062), (184, 103177486), (248, 76551038), (304, 62449531), (368, 51588743), (437, 43443152), (496, 38275519), (589, 32232016), (713, 26626448), (874, 21721576), (1178, 16116008), (1426, 13313224), (1748, 10860788), (2356, 8058004), (2852, 6656612), (3496, 5430394), (4712, 4029002), (5704, 3328306), (6992, 2715197), (9424, 2014501), (11408, 1664153), (13547, 1401392), (27094, 700696), (54188, 350348), (87587, 216752), (108376, 175174)]