1813169280

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{72643}}^1$

素因数の和:72678

約数の個数: 128

約数和(自身を含む): 6224137920

約数和(自身を除く): 4410968640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 128, 130, 156, 160, 192, 195, 208, 240, 260, 312, 320, 384, 390, 416, 480, 520, 624, 640, 780, 832, 960, 1040, 1248, 1560, 1664, 1920, 2080, 2496, 3120, 4160, 4992, 6240, 8320, 12480, 24960, 72643, 145286, 217929, 290572, 363215, 435858, 581144, 726430, 871716, 944359, 1089645, 1162288, 1452860, 1743432, 1888718, 2179290, 2324576, 2833077, 2905720, 3486864, 3777436, 4358580, 4649152, 4721795, 5666154, 5811440, 6973728, 7554872, 8717160, 9298304, 9443590, 11332308, 11622880, 13947456, 14165385, 15109744, 17434320, 18887180, 22664616, 23245760, 27894912, 28330770, 30219488, 34868640, 37774360, 45329232, 46491520, 56661540, 60438976, 69737280, 75548720, 90658464, 113323080, 120877952, 139474560, 151097440, 181316928, 226646160, 302194880, 362633856, 453292320, 604389760, 906584640, 1813169280]

約数ペア:

[(1, 1813169280), (2, 906584640), (3, 604389760), (4, 453292320), (5, 362633856), (6, 302194880), (8, 226646160), (10, 181316928), (12, 151097440), (13, 139474560), (15, 120877952), (16, 113323080), (20, 90658464), (24, 75548720), (26, 69737280), (30, 60438976), (32, 56661540), (39, 46491520), (40, 45329232), (48, 37774360), (52, 34868640), (60, 30219488), (64, 28330770), (65, 27894912), (78, 23245760), (80, 22664616), (96, 18887180), (104, 17434320), (120, 15109744), (128, 14165385), (130, 13947456), (156, 11622880), (160, 11332308), (192, 9443590), (195, 9298304), (208, 8717160), (240, 7554872), (260, 6973728), (312, 5811440), (320, 5666154), (384, 4721795), (390, 4649152), (416, 4358580), (480, 3777436), (520, 3486864), (624, 2905720), (640, 2833077), (780, 2324576), (832, 2179290), (960, 1888718), (1040, 1743432), (1248, 1452860), (1560, 1162288), (1664, 1089645), (1920, 944359), (2080, 871716), (2496, 726430), (3120, 581144), (4160, 435858), (4992, 363215), (6240, 290572), (8320, 217929), (12480, 145286), (24960, 72643)]