20019840

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{10427}}^1$

素因数の和:10449

約数の個数: 64

約数和(自身を含む): 63819360

約数和(自身を除く): 43799520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 320, 384, 480, 640, 960, 1920, 10427, 20854, 31281, 41708, 52135, 62562, 83416, 104270, 125124, 156405, 166832, 208540, 250248, 312810, 333664, 417080, 500496, 625620, 667328, 834160, 1000992, 1251240, 1334656, 1668320, 2001984, 2502480, 3336640, 4003968, 5004960, 6673280, 10009920, 20019840]

約数ペア:

[(1, 20019840), (2, 10009920), (3, 6673280), (4, 5004960), (5, 4003968), (6, 3336640), (8, 2502480), (10, 2001984), (12, 1668320), (15, 1334656), (16, 1251240), (20, 1000992), (24, 834160), (30, 667328), (32, 625620), (40, 500496), (48, 417080), (60, 333664), (64, 312810), (80, 250248), (96, 208540), (120, 166832), (128, 156405), (160, 125124), (192, 104270), (240, 83416), (320, 62562), (384, 52135), (480, 41708), (640, 31281), (960, 20854), (1920, 10427)]