51787720

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{311}}^1$

素因数の和:526

約数の個数: 64

約数和(自身を含む): 122653440

約数和(自身を除く): 70865720

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 181, 184, 230, 311, 362, 460, 622, 724, 905, 920, 1244, 1448, 1555, 1810, 2488, 3110, 3620, 4163, 6220, 7153, 7240, 8326, 12440, 14306, 16652, 20815, 28612, 33304, 35765, 41630, 56291, 57224, 71530, 83260, 112582, 143060, 166520, 225164, 281455, 286120, 450328, 562910, 1125820, 1294693, 2251640, 2589386, 5178772, 6473465, 10357544, 12946930, 25893860, 51787720]

約数ペア:

[(1, 51787720), (2, 25893860), (4, 12946930), (5, 10357544), (8, 6473465), (10, 5178772), (20, 2589386), (23, 2251640), (40, 1294693), (46, 1125820), (92, 562910), (115, 450328), (181, 286120), (184, 281455), (230, 225164), (311, 166520), (362, 143060), (460, 112582), (622, 83260), (724, 71530), (905, 57224), (920, 56291), (1244, 41630), (1448, 35765), (1555, 33304), (1810, 28612), (2488, 20815), (3110, 16652), (3620, 14306), (4163, 12440), (6220, 8326), (7153, 7240)]