40201520

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{6361}}^1$

素因数の和:6453

約数の個数: 40

約数和(自身を含む): 94666560

約数和(自身を除く): 54465040

約数列:

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

約数ペア:

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