12688640

素因数分解:

$2^8\times 5^1\times {\mathrm{23}}^1\times {\mathrm{431}}^1$

素因数の和:475

約数の個数: 72

約数和(自身を含む): 31788288

約数和(自身を除く): 19099648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 160, 184, 230, 256, 320, 368, 431, 460, 640, 736, 862, 920, 1280, 1472, 1724, 1840, 2155, 2944, 3448, 3680, 4310, 5888, 6896, 7360, 8620, 9913, 13792, 14720, 17240, 19826, 27584, 29440, 34480, 39652, 49565, 55168, 68960, 79304, 99130, 110336, 137920, 158608, 198260, 275840, 317216, 396520, 551680, 634432, 793040, 1268864, 1586080, 2537728, 3172160, 6344320, 12688640]

約数ペア:

[(1, 12688640), (2, 6344320), (4, 3172160), (5, 2537728), (8, 1586080), (10, 1268864), (16, 793040), (20, 634432), (23, 551680), (32, 396520), (40, 317216), (46, 275840), (64, 198260), (80, 158608), (92, 137920), (115, 110336), (128, 99130), (160, 79304), (184, 68960), (230, 55168), (256, 49565), (320, 39652), (368, 34480), (431, 29440), (460, 27584), (640, 19826), (736, 17240), (862, 14720), (920, 13792), (1280, 9913), (1472, 8620), (1724, 7360), (1840, 6896), (2155, 5888), (2944, 4310), (3448, 3680)]