80728065

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2297}}^1$

素因数の和:2390

約数の個数: 48

約数和(自身を含む): 154866816

約数和(自身を除く): 74138751

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 71, 99, 165, 213, 355, 495, 639, 781, 1065, 2297, 2343, 3195, 3905, 6891, 7029, 11485, 11715, 20673, 25267, 34455, 35145, 75801, 103365, 126335, 163087, 227403, 379005, 489261, 815435, 1137015, 1467783, 1793957, 2446305, 5381871, 7338915, 8969785, 16145613, 26909355, 80728065]

約数ペア:

[(1, 80728065), (3, 26909355), (5, 16145613), (9, 8969785), (11, 7338915), (15, 5381871), (33, 2446305), (45, 1793957), (55, 1467783), (71, 1137015), (99, 815435), (165, 489261), (213, 379005), (355, 227403), (495, 163087), (639, 126335), (781, 103365), (1065, 75801), (2297, 35145), (2343, 34455), (3195, 25267), (3905, 20673), (6891, 11715), (7029, 11485)]