40891520

素因数分解:

$2^7\times 5^1\times {\mathrm{181}}^1\times {\mathrm{353}}^1$

素因数の和:553

約数の個数: 64

約数和(自身を含む): 98574840

約数和(自身を除く): 57683320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 181, 320, 353, 362, 640, 706, 724, 905, 1412, 1448, 1765, 1810, 2824, 2896, 3530, 3620, 5648, 5792, 7060, 7240, 11296, 11584, 14120, 14480, 22592, 23168, 28240, 28960, 45184, 56480, 57920, 63893, 112960, 115840, 127786, 225920, 255572, 319465, 511144, 638930, 1022288, 1277860, 2044576, 2555720, 4089152, 5111440, 8178304, 10222880, 20445760, 40891520]

約数ペア:

[(1, 40891520), (2, 20445760), (4, 10222880), (5, 8178304), (8, 5111440), (10, 4089152), (16, 2555720), (20, 2044576), (32, 1277860), (40, 1022288), (64, 638930), (80, 511144), (128, 319465), (160, 255572), (181, 225920), (320, 127786), (353, 115840), (362, 112960), (640, 63893), (706, 57920), (724, 56480), (905, 45184), (1412, 28960), (1448, 28240), (1765, 23168), (1810, 22592), (2824, 14480), (2896, 14120), (3530, 11584), (3620, 11296), (5648, 7240), (5792, 7060)]