247636640

素因数分解:

$2^5\times 5^1\times {\mathrm{71}}^1\times {\mathrm{21799}}^1$

素因数の和:21885

約数の個数: 48

約数和(自身を含む): 593308800

約数和(自身を除く): 345672160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 71, 80, 142, 160, 284, 355, 568, 710, 1136, 1420, 2272, 2840, 5680, 11360, 21799, 43598, 87196, 108995, 174392, 217990, 348784, 435980, 697568, 871960, 1547729, 1743920, 3095458, 3487840, 6190916, 7738645, 12381832, 15477290, 24763664, 30954580, 49527328, 61909160, 123818320, 247636640]

約数ペア:

[(1, 247636640), (2, 123818320), (4, 61909160), (5, 49527328), (8, 30954580), (10, 24763664), (16, 15477290), (20, 12381832), (32, 7738645), (40, 6190916), (71, 3487840), (80, 3095458), (142, 1743920), (160, 1547729), (284, 871960), (355, 697568), (568, 435980), (710, 348784), (1136, 217990), (1420, 174392), (2272, 108995), (2840, 87196), (5680, 43598), (11360, 21799)]