81825130

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^2\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:263

約数の個数: 48

約数和(自身を含む): 156008160

約数和(自身を除く): 74183030

約数列:

[1, 2, 5, 10, 37, 43, 74, 86, 139, 185, 215, 278, 370, 430, 695, 1369, 1390, 1591, 2738, 3182, 5143, 5977, 6845, 7955, 10286, 11954, 13690, 15910, 25715, 29885, 51430, 58867, 59770, 117734, 190291, 221149, 294335, 380582, 442298, 588670, 951455, 1105745, 1902910, 2211490, 8182513, 16365026, 40912565, 81825130]

約数ペア:

[(1, 81825130), (2, 40912565), (5, 16365026), (10, 8182513), (37, 2211490), (43, 1902910), (74, 1105745), (86, 951455), (139, 588670), (185, 442298), (215, 380582), (278, 294335), (370, 221149), (430, 190291), (695, 117734), (1369, 59770), (1390, 58867), (1591, 51430), (2738, 29885), (3182, 25715), (5143, 15910), (5977, 13690), (6845, 11954), (7955, 10286)]