20163930880

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{8209}}^1$

素因数の和:8350

約数の個数: 144

約数和(自身を含む): 51350594400

約数和(自身を除く): 31186663520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 101, 128, 152, 160, 190, 202, 256, 304, 320, 380, 404, 505, 608, 640, 760, 808, 1010, 1216, 1280, 1520, 1616, 1919, 2020, 2432, 3040, 3232, 3838, 4040, 4864, 6080, 6464, 7676, 8080, 8209, 9595, 12160, 12928, 15352, 16160, 16418, 19190, 24320, 25856, 30704, 32320, 32836, 38380, 41045, 61408, 64640, 65672, 76760, 82090, 122816, 129280, 131344, 153520, 155971, 164180, 245632, 262688, 307040, 311942, 328360, 491264, 525376, 614080, 623884, 656720, 779855, 829109, 1050752, 1228160, 1247768, 1313440, 1559710, 1658218, 2101504, 2456320, 2495536, 2626880, 3119420, 3316436, 4145545, 4991072, 5253760, 6238840, 6632872, 8291090, 9982144, 10507520, 12477680, 13265744, 15753071, 16582180, 19964288, 24955360, 26531488, 31506142, 33164360, 39928576, 49910720, 53062976, 63012284, 66328720, 78765355, 99821440, 106125952, 126024568, 132657440, 157530710, 199642880, 212251904, 252049136, 265314880, 315061420, 504098272, 530629760, 630122840, 1008196544, 1061259520, 1260245680, 2016393088, 2520491360, 4032786176, 5040982720, 10081965440, 20163930880]

約数ペア:

[(1, 20163930880), (2, 10081965440), (4, 5040982720), (5, 4032786176), (8, 2520491360), (10, 2016393088), (16, 1260245680), (19, 1061259520), (20, 1008196544), (32, 630122840), (38, 530629760), (40, 504098272), (64, 315061420), (76, 265314880), (80, 252049136), (95, 212251904), (101, 199642880), (128, 157530710), (152, 132657440), (160, 126024568), (190, 106125952), (202, 99821440), (256, 78765355), (304, 66328720), (320, 63012284), (380, 53062976), (404, 49910720), (505, 39928576), (608, 33164360), (640, 31506142), (760, 26531488), (808, 24955360), (1010, 19964288), (1216, 16582180), (1280, 15753071), (1520, 13265744), (1616, 12477680), (1919, 10507520), (2020, 9982144), (2432, 8291090), (3040, 6632872), (3232, 6238840), (3838, 5253760), (4040, 4991072), (4864, 4145545), (6080, 3316436), (6464, 3119420), (7676, 2626880), (8080, 2495536), (8209, 2456320), (9595, 2101504), (12160, 1658218), (12928, 1559710), (15352, 1313440), (16160, 1247768), (16418, 1228160), (19190, 1050752), (24320, 829109), (25856, 779855), (30704, 656720), (32320, 623884), (32836, 614080), (38380, 525376), (41045, 491264), (61408, 328360), (64640, 311942), (65672, 307040), (76760, 262688), (82090, 245632), (122816, 164180), (129280, 155971), (131344, 153520)]