81016515

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{281}}^1$

素因数の和:484

約数の個数: 48

約数和(自身を含む): 145173600

約数和(自身を除く): 64157085

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 149, 215, 281, 387, 447, 645, 745, 843, 1341, 1405, 1935, 2235, 2529, 4215, 6407, 6705, 12083, 12645, 19221, 32035, 36249, 41869, 57663, 60415, 96105, 108747, 125607, 181245, 209345, 288315, 376821, 543735, 628035, 1800367, 1884105, 5401101, 9001835, 16203303, 27005505, 81016515]

約数ペア:

[(1, 81016515), (3, 27005505), (5, 16203303), (9, 9001835), (15, 5401101), (43, 1884105), (45, 1800367), (129, 628035), (149, 543735), (215, 376821), (281, 288315), (387, 209345), (447, 181245), (645, 125607), (745, 108747), (843, 96105), (1341, 60415), (1405, 57663), (1935, 41869), (2235, 36249), (2529, 32035), (4215, 19221), (6407, 12645), (6705, 12083)]