20968288

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{839}}^1$

素因数の和:931

約数の個数: 48

約数和(自身を含む): 45722880

約数和(自身を除く): 24754592

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 71, 88, 142, 176, 284, 352, 568, 781, 839, 1136, 1562, 1678, 2272, 3124, 3356, 6248, 6712, 9229, 12496, 13424, 18458, 24992, 26848, 36916, 59569, 73832, 119138, 147664, 238276, 295328, 476552, 655259, 953104, 1310518, 1906208, 2621036, 5242072, 10484144, 20968288]

約数ペア:

[(1, 20968288), (2, 10484144), (4, 5242072), (8, 2621036), (11, 1906208), (16, 1310518), (22, 953104), (32, 655259), (44, 476552), (71, 295328), (88, 238276), (142, 147664), (176, 119138), (284, 73832), (352, 59569), (568, 36916), (781, 26848), (839, 24992), (1136, 18458), (1562, 13424), (1678, 12496), (2272, 9229), (3124, 6712), (3356, 6248)]