21372800

素因数分解:

$2^7\times 5^2\times {\mathrm{6679}}^1$

素因数の和:6703

約数の個数: 48

約数和(自身を含む): 52805400

約数和(自身を除く): 31432600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 320, 400, 640, 800, 1600, 3200, 6679, 13358, 26716, 33395, 53432, 66790, 106864, 133580, 166975, 213728, 267160, 333950, 427456, 534320, 667900, 854912, 1068640, 1335800, 2137280, 2671600, 4274560, 5343200, 10686400, 21372800]

約数ペア:

[(1, 21372800), (2, 10686400), (4, 5343200), (5, 4274560), (8, 2671600), (10, 2137280), (16, 1335800), (20, 1068640), (25, 854912), (32, 667900), (40, 534320), (50, 427456), (64, 333950), (80, 267160), (100, 213728), (128, 166975), (160, 133580), (200, 106864), (320, 66790), (400, 53432), (640, 33395), (800, 26716), (1600, 13358), (3200, 6679)]