1999807360

素因数分解:

$2^7\times 5^1\times {\mathrm{59}}^1\times {\mathrm{211}}^1\times {\mathrm{251}}^1$

素因数の和:540

約数の個数: 128

約数和(自身を含む): 4904323200

約数和(自身を除く): 2904515840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 59, 64, 80, 118, 128, 160, 211, 236, 251, 295, 320, 422, 472, 502, 590, 640, 844, 944, 1004, 1055, 1180, 1255, 1688, 1888, 2008, 2110, 2360, 2510, 3376, 3776, 4016, 4220, 4720, 5020, 6752, 7552, 8032, 8440, 9440, 10040, 12449, 13504, 14809, 16064, 16880, 18880, 20080, 24898, 27008, 29618, 32128, 33760, 37760, 40160, 49796, 52961, 59236, 62245, 67520, 74045, 80320, 99592, 105922, 118472, 124490, 135040, 148090, 160640, 199184, 211844, 236944, 248980, 264805, 296180, 398368, 423688, 473888, 497960, 529610, 592360, 796736, 847376, 947776, 995920, 1059220, 1184720, 1593472, 1694752, 1895552, 1991840, 2118440, 2369440, 3124699, 3389504, 3983680, 4236880, 4738880, 6249398, 6779008, 7967360, 8473760, 9477760, 12498796, 15623495, 16947520, 24997592, 31246990, 33895040, 49995184, 62493980, 99990368, 124987960, 199980736, 249975920, 399961472, 499951840, 999903680, 1999807360]

約数ペア:

[(1, 1999807360), (2, 999903680), (4, 499951840), (5, 399961472), (8, 249975920), (10, 199980736), (16, 124987960), (20, 99990368), (32, 62493980), (40, 49995184), (59, 33895040), (64, 31246990), (80, 24997592), (118, 16947520), (128, 15623495), (160, 12498796), (211, 9477760), (236, 8473760), (251, 7967360), (295, 6779008), (320, 6249398), (422, 4738880), (472, 4236880), (502, 3983680), (590, 3389504), (640, 3124699), (844, 2369440), (944, 2118440), (1004, 1991840), (1055, 1895552), (1180, 1694752), (1255, 1593472), (1688, 1184720), (1888, 1059220), (2008, 995920), (2110, 947776), (2360, 847376), (2510, 796736), (3376, 592360), (3776, 529610), (4016, 497960), (4220, 473888), (4720, 423688), (5020, 398368), (6752, 296180), (7552, 264805), (8032, 248980), (8440, 236944), (9440, 211844), (10040, 199184), (12449, 160640), (13504, 148090), (14809, 135040), (16064, 124490), (16880, 118472), (18880, 105922), (20080, 99592), (24898, 80320), (27008, 74045), (29618, 67520), (32128, 62245), (33760, 59236), (37760, 52961), (40160, 49796)]