40439680

素因数分解:

$2^7\times 5^1\times {\mathrm{179}}^1\times {\mathrm{353}}^1$

素因数の和:551

約数の個数: 64

約数和(自身を含む): 97491600

約数和(自身を除く): 57051920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 179, 320, 353, 358, 640, 706, 716, 895, 1412, 1432, 1765, 1790, 2824, 2864, 3530, 3580, 5648, 5728, 7060, 7160, 11296, 11456, 14120, 14320, 22592, 22912, 28240, 28640, 45184, 56480, 57280, 63187, 112960, 114560, 126374, 225920, 252748, 315935, 505496, 631870, 1010992, 1263740, 2021984, 2527480, 4043968, 5054960, 8087936, 10109920, 20219840, 40439680]

約数ペア:

[(1, 40439680), (2, 20219840), (4, 10109920), (5, 8087936), (8, 5054960), (10, 4043968), (16, 2527480), (20, 2021984), (32, 1263740), (40, 1010992), (64, 631870), (80, 505496), (128, 315935), (160, 252748), (179, 225920), (320, 126374), (353, 114560), (358, 112960), (640, 63187), (706, 57280), (716, 56480), (895, 45184), (1412, 28640), (1432, 28240), (1765, 22912), (1790, 22592), (2824, 14320), (2864, 14120), (3530, 11456), (3580, 11296), (5648, 7160), (5728, 7060)]