19678085120

素因数分解:

$2^{14}\times 5^1\times {\mathrm{89}}^1\times {\mathrm{2699}}^1$

素因数の和:2821

約数の個数: 120

約数和(自身を含む): 47774286000

約数和(自身を除く): 28096200880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 89, 128, 160, 178, 256, 320, 356, 445, 512, 640, 712, 890, 1024, 1280, 1424, 1780, 2048, 2560, 2699, 2848, 3560, 4096, 5120, 5398, 5696, 7120, 8192, 10240, 10796, 11392, 13495, 14240, 16384, 20480, 21592, 22784, 26990, 28480, 40960, 43184, 45568, 53980, 56960, 81920, 86368, 91136, 107960, 113920, 172736, 182272, 215920, 227840, 240211, 345472, 364544, 431840, 455680, 480422, 690944, 729088, 863680, 911360, 960844, 1201055, 1381888, 1458176, 1727360, 1822720, 1921688, 2402110, 2763776, 3454720, 3645440, 3843376, 4804220, 5527552, 6909440, 7290880, 7686752, 9608440, 11055104, 13818880, 15373504, 19216880, 22110208, 27637760, 30747008, 38433760, 44220416, 55275520, 61494016, 76867520, 110551040, 122988032, 153735040, 221102080, 245976064, 307470080, 491952128, 614940160, 983904256, 1229880320, 1967808512, 2459760640, 3935617024, 4919521280, 9839042560, 19678085120]

約数ペア:

[(1, 19678085120), (2, 9839042560), (4, 4919521280), (5, 3935617024), (8, 2459760640), (10, 1967808512), (16, 1229880320), (20, 983904256), (32, 614940160), (40, 491952128), (64, 307470080), (80, 245976064), (89, 221102080), (128, 153735040), (160, 122988032), (178, 110551040), (256, 76867520), (320, 61494016), (356, 55275520), (445, 44220416), (512, 38433760), (640, 30747008), (712, 27637760), (890, 22110208), (1024, 19216880), (1280, 15373504), (1424, 13818880), (1780, 11055104), (2048, 9608440), (2560, 7686752), (2699, 7290880), (2848, 6909440), (3560, 5527552), (4096, 4804220), (5120, 3843376), (5398, 3645440), (5696, 3454720), (7120, 2763776), (8192, 2402110), (10240, 1921688), (10796, 1822720), (11392, 1727360), (13495, 1458176), (14240, 1381888), (16384, 1201055), (20480, 960844), (21592, 911360), (22784, 863680), (26990, 729088), (28480, 690944), (40960, 480422), (43184, 455680), (45568, 431840), (53980, 364544), (56960, 345472), (81920, 240211), (86368, 227840), (91136, 215920), (107960, 182272), (113920, 172736)]