81303855

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{3299}}^1$

素因数の和:3391

約数の個数: 32

約数和(自身を含む): 136857600

約数和(自身を除く): 55553745

約数列:

[1, 3, 5, 15, 31, 53, 93, 155, 159, 265, 465, 795, 1643, 3299, 4929, 8215, 9897, 16495, 24645, 49485, 102269, 174847, 306807, 511345, 524541, 874235, 1534035, 2622705, 5420257, 16260771, 27101285, 81303855]

約数ペア:

[(1, 81303855), (3, 27101285), (5, 16260771), (15, 5420257), (31, 2622705), (53, 1534035), (93, 874235), (155, 524541), (159, 511345), (265, 306807), (465, 174847), (795, 102269), (1643, 49485), (3299, 24645), (4929, 16495), (8215, 9897)]