81686270

素因数分解:

$2^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1\times {\mathrm{751}}^1$

素因数の和:980

約数の個数: 32

約数和(自身を含む): 150249600

約数和(自身を除く): 68563330

約数列:

[1, 2, 5, 10, 73, 146, 149, 298, 365, 730, 745, 751, 1490, 1502, 3755, 7510, 10877, 21754, 54385, 54823, 108770, 109646, 111899, 223798, 274115, 548230, 559495, 1118990, 8168627, 16337254, 40843135, 81686270]

約数ペア:

[(1, 81686270), (2, 40843135), (5, 16337254), (10, 8168627), (73, 1118990), (146, 559495), (149, 548230), (298, 274115), (365, 223798), (730, 111899), (745, 109646), (751, 108770), (1490, 54823), (1502, 54385), (3755, 21754), (7510, 10877)]