643046720

素因数分解:

$2^6\times 5^1\times {\mathrm{127}}^1\times {\mathrm{15823}}^1$

素因数の和:15967

約数の個数: 56

約数和(自身を含む): 1543409664

約数和(自身を除く): 900362944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 160, 254, 320, 508, 635, 1016, 1270, 2032, 2540, 4064, 5080, 8128, 10160, 15823, 20320, 31646, 40640, 63292, 79115, 126584, 158230, 253168, 316460, 506336, 632920, 1012672, 1265840, 2009521, 2531680, 4019042, 5063360, 8038084, 10047605, 16076168, 20095210, 32152336, 40190420, 64304672, 80380840, 128609344, 160761680, 321523360, 643046720]

約数ペア:

[(1, 643046720), (2, 321523360), (4, 160761680), (5, 128609344), (8, 80380840), (10, 64304672), (16, 40190420), (20, 32152336), (32, 20095210), (40, 16076168), (64, 10047605), (80, 8038084), (127, 5063360), (160, 4019042), (254, 2531680), (320, 2009521), (508, 1265840), (635, 1012672), (1016, 632920), (1270, 506336), (2032, 316460), (2540, 253168), (4064, 158230), (5080, 126584), (8128, 79115), (10160, 63292), (15823, 40640), (20320, 31646)]