81305650

素因数分解:

$2^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{619}}^1$

素因数の和:739

約数の個数: 48

約数和(自身を含む): 157757760

約数和(自身を除く): 76452110

約数列:

[1, 2, 5, 10, 25, 37, 50, 71, 74, 142, 185, 355, 370, 619, 710, 925, 1238, 1775, 1850, 2627, 3095, 3550, 5254, 6190, 13135, 15475, 22903, 26270, 30950, 43949, 45806, 65675, 87898, 114515, 131350, 219745, 229030, 439490, 572575, 1098725, 1145150, 1626113, 2197450, 3252226, 8130565, 16261130, 40652825, 81305650]

約数ペア:

[(1, 81305650), (2, 40652825), (5, 16261130), (10, 8130565), (25, 3252226), (37, 2197450), (50, 1626113), (71, 1145150), (74, 1098725), (142, 572575), (185, 439490), (355, 229030), (370, 219745), (619, 131350), (710, 114515), (925, 87898), (1238, 65675), (1775, 45806), (1850, 43949), (2627, 30950), (3095, 26270), (3550, 22903), (5254, 15475), (6190, 13135)]