819420160

素因数分解:

$2^{10}\times 5^1\times {\mathrm{13}}^2\times {\mathrm{947}}^1$

素因数の和:998

約数の個数: 132

約数和(自身を含む): 2130730488

約数和(自身を除く): 1311310328

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 169, 208, 256, 260, 320, 338, 416, 512, 520, 640, 676, 832, 845, 947, 1024, 1040, 1280, 1352, 1664, 1690, 1894, 2080, 2560, 2704, 3328, 3380, 3788, 4160, 4735, 5120, 5408, 6656, 6760, 7576, 8320, 9470, 10816, 12311, 13312, 13520, 15152, 16640, 18940, 21632, 24622, 27040, 30304, 33280, 37880, 43264, 49244, 54080, 60608, 61555, 66560, 75760, 86528, 98488, 108160, 121216, 123110, 151520, 160043, 173056, 196976, 216320, 242432, 246220, 303040, 320086, 393952, 432640, 484864, 492440, 606080, 640172, 787904, 800215, 865280, 969728, 984880, 1212160, 1280344, 1575808, 1600430, 1969760, 2424320, 2560688, 3151616, 3200860, 3939520, 4848640, 5121376, 6303232, 6401720, 7879040, 10242752, 12606464, 12803440, 15758080, 20485504, 25606880, 31516160, 40971008, 51213760, 63032320, 81942016, 102427520, 163884032, 204855040, 409710080, 819420160]

約数ペア:

[(1, 819420160), (2, 409710080), (4, 204855040), (5, 163884032), (8, 102427520), (10, 81942016), (13, 63032320), (16, 51213760), (20, 40971008), (26, 31516160), (32, 25606880), (40, 20485504), (52, 15758080), (64, 12803440), (65, 12606464), (80, 10242752), (104, 7879040), (128, 6401720), (130, 6303232), (160, 5121376), (169, 4848640), (208, 3939520), (256, 3200860), (260, 3151616), (320, 2560688), (338, 2424320), (416, 1969760), (512, 1600430), (520, 1575808), (640, 1280344), (676, 1212160), (832, 984880), (845, 969728), (947, 865280), (1024, 800215), (1040, 787904), (1280, 640172), (1352, 606080), (1664, 492440), (1690, 484864), (1894, 432640), (2080, 393952), (2560, 320086), (2704, 303040), (3328, 246220), (3380, 242432), (3788, 216320), (4160, 196976), (4735, 173056), (5120, 160043), (5408, 151520), (6656, 123110), (6760, 121216), (7576, 108160), (8320, 98488), (9470, 86528), (10816, 75760), (12311, 66560), (13312, 61555), (13520, 60608), (15152, 54080), (16640, 49244), (18940, 43264), (21632, 37880), (24622, 33280), (27040, 30304)]