80403040

素因数分解:

$2^5\times 5^1\times {\mathrm{79}}^1\times {\mathrm{6361}}^1$

素因数の和:6455

約数の個数: 48

約数和(自身を含む): 192386880

約数和(自身を除く): 111983840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 79, 80, 158, 160, 316, 395, 632, 790, 1264, 1580, 2528, 3160, 6320, 6361, 12640, 12722, 25444, 31805, 50888, 63610, 101776, 127220, 203552, 254440, 502519, 508880, 1005038, 1017760, 2010076, 2512595, 4020152, 5025190, 8040304, 10050380, 16080608, 20100760, 40201520, 80403040]

約数ペア:

[(1, 80403040), (2, 40201520), (4, 20100760), (5, 16080608), (8, 10050380), (10, 8040304), (16, 5025190), (20, 4020152), (32, 2512595), (40, 2010076), (79, 1017760), (80, 1005038), (158, 508880), (160, 502519), (316, 254440), (395, 203552), (632, 127220), (790, 101776), (1264, 63610), (1580, 50888), (2528, 31805), (3160, 25444), (6320, 12722), (6361, 12640)]