20304285

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{229}}^1\times {\mathrm{257}}^1$

素因数の和:517

約数の個数: 32

約数和(自身を含む): 34179840

約数和(自身を除く): 13875555

約数列:

[1, 3, 5, 15, 23, 69, 115, 229, 257, 345, 687, 771, 1145, 1285, 3435, 3855, 5267, 5911, 15801, 17733, 26335, 29555, 58853, 79005, 88665, 176559, 294265, 882795, 1353619, 4060857, 6768095, 20304285]

約数ペア:

[(1, 20304285), (3, 6768095), (5, 4060857), (15, 1353619), (23, 882795), (69, 294265), (115, 176559), (229, 88665), (257, 79005), (345, 58853), (687, 29555), (771, 26335), (1145, 17733), (1285, 15801), (3435, 5911), (3855, 5267)]