81268515

素因数分解:

$3^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{6473}}^1$

素因数の和:6521

約数の個数: 40

約数和(自身を含む): 150403968

約数和(自身を除く): 69135453

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 81, 93, 135, 155, 279, 405, 465, 837, 1395, 2511, 4185, 6473, 12555, 19419, 32365, 58257, 97095, 174771, 200663, 291285, 524313, 601989, 873855, 1003315, 1805967, 2621565, 3009945, 5417901, 9029835, 16253703, 27089505, 81268515]

約数ペア:

[(1, 81268515), (3, 27089505), (5, 16253703), (9, 9029835), (15, 5417901), (27, 3009945), (31, 2621565), (45, 1805967), (81, 1003315), (93, 873855), (135, 601989), (155, 524313), (279, 291285), (405, 200663), (465, 174771), (837, 97095), (1395, 58257), (2511, 32365), (4185, 19419), (6473, 12555)]