21376000

素因数分解:

$2^{10}\times 5^3\times {\mathrm{167}}^1$

素因数の和:202

約数の個数: 88

約数和(自身を含む): 53647776

約数和(自身を除く): 32271776

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 167, 200, 250, 256, 320, 334, 400, 500, 512, 640, 668, 800, 835, 1000, 1024, 1280, 1336, 1600, 1670, 2000, 2560, 2672, 3200, 3340, 4000, 4175, 5120, 5344, 6400, 6680, 8000, 8350, 10688, 12800, 13360, 16000, 16700, 20875, 21376, 25600, 26720, 32000, 33400, 41750, 42752, 53440, 64000, 66800, 83500, 85504, 106880, 128000, 133600, 167000, 171008, 213760, 267200, 334000, 427520, 534400, 668000, 855040, 1068800, 1336000, 2137600, 2672000, 4275200, 5344000, 10688000, 21376000]

約数ペア:

[(1, 21376000), (2, 10688000), (4, 5344000), (5, 4275200), (8, 2672000), (10, 2137600), (16, 1336000), (20, 1068800), (25, 855040), (32, 668000), (40, 534400), (50, 427520), (64, 334000), (80, 267200), (100, 213760), (125, 171008), (128, 167000), (160, 133600), (167, 128000), (200, 106880), (250, 85504), (256, 83500), (320, 66800), (334, 64000), (400, 53440), (500, 42752), (512, 41750), (640, 33400), (668, 32000), (800, 26720), (835, 25600), (1000, 21376), (1024, 20875), (1280, 16700), (1336, 16000), (1600, 13360), (1670, 12800), (2000, 10688), (2560, 8350), (2672, 8000), (3200, 6680), (3340, 6400), (4000, 5344), (4175, 5120)]