18747888640

素因数分解:

$2^{10}\times 5^1\times {\mathrm{13}}^1\times {\mathrm{281669}}^1$

素因数の和:281707

約数の個数: 88

約数和(自身を含む): 48432593160

約数和(自身を除く): 29684704520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 512, 520, 640, 832, 1024, 1040, 1280, 1664, 2080, 2560, 3328, 4160, 5120, 6656, 8320, 13312, 16640, 33280, 66560, 281669, 563338, 1126676, 1408345, 2253352, 2816690, 3661697, 4506704, 5633380, 7323394, 9013408, 11266760, 14646788, 18026816, 18308485, 22533520, 29293576, 36053632, 36616970, 45067040, 58587152, 72107264, 73233940, 90134080, 117174304, 144214528, 146467880, 180268160, 234348608, 288429056, 292935760, 360536320, 468697216, 585871520, 721072640, 937394432, 1171743040, 1442145280, 1874788864, 2343486080, 3749577728, 4686972160, 9373944320, 18747888640]

約数ペア:

[(1, 18747888640), (2, 9373944320), (4, 4686972160), (5, 3749577728), (8, 2343486080), (10, 1874788864), (13, 1442145280), (16, 1171743040), (20, 937394432), (26, 721072640), (32, 585871520), (40, 468697216), (52, 360536320), (64, 292935760), (65, 288429056), (80, 234348608), (104, 180268160), (128, 146467880), (130, 144214528), (160, 117174304), (208, 90134080), (256, 73233940), (260, 72107264), (320, 58587152), (416, 45067040), (512, 36616970), (520, 36053632), (640, 29293576), (832, 22533520), (1024, 18308485), (1040, 18026816), (1280, 14646788), (1664, 11266760), (2080, 9013408), (2560, 7323394), (3328, 5633380), (4160, 4506704), (5120, 3661697), (6656, 2816690), (8320, 2253352), (13312, 1408345), (16640, 1126676), (33280, 563338), (66560, 281669)]