1640982560

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{5657}}^1$

素因数の和:5723

約数の個数: 144

約数和(自身を含む): 4632476184

約数和(自身を除く): 2991493624

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 37, 40, 49, 56, 70, 74, 80, 98, 112, 140, 148, 160, 185, 196, 224, 245, 259, 280, 296, 370, 392, 490, 518, 560, 592, 740, 784, 980, 1036, 1120, 1184, 1295, 1480, 1568, 1813, 1960, 2072, 2590, 2960, 3626, 3920, 4144, 5180, 5657, 5920, 7252, 7840, 8288, 9065, 10360, 11314, 14504, 18130, 20720, 22628, 28285, 29008, 36260, 39599, 41440, 45256, 56570, 58016, 72520, 79198, 90512, 113140, 145040, 158396, 181024, 197995, 209309, 226280, 277193, 290080, 316792, 395990, 418618, 452560, 554386, 633584, 791980, 837236, 905120, 1046545, 1108772, 1267168, 1385965, 1465163, 1583960, 1674472, 2093090, 2217544, 2771930, 2930326, 3167920, 3348944, 4186180, 4435088, 5543860, 5860652, 6335840, 6697888, 7325815, 8372360, 8870176, 10256141, 11087720, 11721304, 14651630, 16744720, 20512282, 22175440, 23442608, 29303260, 33489440, 41024564, 44350880, 46885216, 51280705, 58606520, 82049128, 102561410, 117213040, 164098256, 205122820, 234426080, 328196512, 410245640, 820491280, 1640982560]

約数ペア:

[(1, 1640982560), (2, 820491280), (4, 410245640), (5, 328196512), (7, 234426080), (8, 205122820), (10, 164098256), (14, 117213040), (16, 102561410), (20, 82049128), (28, 58606520), (32, 51280705), (35, 46885216), (37, 44350880), (40, 41024564), (49, 33489440), (56, 29303260), (70, 23442608), (74, 22175440), (80, 20512282), (98, 16744720), (112, 14651630), (140, 11721304), (148, 11087720), (160, 10256141), (185, 8870176), (196, 8372360), (224, 7325815), (245, 6697888), (259, 6335840), (280, 5860652), (296, 5543860), (370, 4435088), (392, 4186180), (490, 3348944), (518, 3167920), (560, 2930326), (592, 2771930), (740, 2217544), (784, 2093090), (980, 1674472), (1036, 1583960), (1120, 1465163), (1184, 1385965), (1295, 1267168), (1480, 1108772), (1568, 1046545), (1813, 905120), (1960, 837236), (2072, 791980), (2590, 633584), (2960, 554386), (3626, 452560), (3920, 418618), (4144, 395990), (5180, 316792), (5657, 290080), (5920, 277193), (7252, 226280), (7840, 209309), (8288, 197995), (9065, 181024), (10360, 158396), (11314, 145040), (14504, 113140), (18130, 90512), (20720, 79198), (22628, 72520), (28285, 58016), (29008, 56570), (36260, 45256), (39599, 41440)]