25720288

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{821}}^1$

素因数の和:931

約数の個数: 48

約数和(自身を含む): 55928880

約数和(自身を除く): 30208592

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 89, 176, 178, 352, 356, 712, 821, 979, 1424, 1642, 1958, 2848, 3284, 3916, 6568, 7832, 9031, 13136, 15664, 18062, 26272, 31328, 36124, 72248, 73069, 144496, 146138, 288992, 292276, 584552, 803759, 1169104, 1607518, 2338208, 3215036, 6430072, 12860144, 25720288]

約数ペア:

[(1, 25720288), (2, 12860144), (4, 6430072), (8, 3215036), (11, 2338208), (16, 1607518), (22, 1169104), (32, 803759), (44, 584552), (88, 292276), (89, 288992), (176, 146138), (178, 144496), (352, 73069), (356, 72248), (712, 36124), (821, 31328), (979, 26272), (1424, 18062), (1642, 15664), (1958, 13136), (2848, 9031), (3284, 7832), (3916, 6568)]