20208000

素因数分解:

$2^7\times 3^1\times 5^3\times {\mathrm{421}}^1$

素因数の和:453

約数の個数: 128

約数和(自身を含む): 67148640

約数和(自身を除く): 46940640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 32, 40, 48, 50, 60, 64, 75, 80, 96, 100, 120, 125, 128, 150, 160, 192, 200, 240, 250, 300, 320, 375, 384, 400, 421, 480, 500, 600, 640, 750, 800, 842, 960, 1000, 1200, 1263, 1500, 1600, 1684, 1920, 2000, 2105, 2400, 2526, 3000, 3200, 3368, 4000, 4210, 4800, 5052, 6000, 6315, 6736, 8000, 8420, 9600, 10104, 10525, 12000, 12630, 13472, 16000, 16840, 20208, 21050, 24000, 25260, 26944, 31575, 33680, 40416, 42100, 48000, 50520, 52625, 53888, 63150, 67360, 80832, 84200, 101040, 105250, 126300, 134720, 157875, 161664, 168400, 202080, 210500, 252600, 269440, 315750, 336800, 404160, 421000, 505200, 631500, 673600, 808320, 842000, 1010400, 1263000, 1347200, 1684000, 2020800, 2526000, 3368000, 4041600, 5052000, 6736000, 10104000, 20208000]

約数ペア:

[(1, 20208000), (2, 10104000), (3, 6736000), (4, 5052000), (5, 4041600), (6, 3368000), (8, 2526000), (10, 2020800), (12, 1684000), (15, 1347200), (16, 1263000), (20, 1010400), (24, 842000), (25, 808320), (30, 673600), (32, 631500), (40, 505200), (48, 421000), (50, 404160), (60, 336800), (64, 315750), (75, 269440), (80, 252600), (96, 210500), (100, 202080), (120, 168400), (125, 161664), (128, 157875), (150, 134720), (160, 126300), (192, 105250), (200, 101040), (240, 84200), (250, 80832), (300, 67360), (320, 63150), (375, 53888), (384, 52625), (400, 50520), (421, 48000), (480, 42100), (500, 40416), (600, 33680), (640, 31575), (750, 26944), (800, 25260), (842, 24000), (960, 21050), (1000, 20208), (1200, 16840), (1263, 16000), (1500, 13472), (1600, 12630), (1684, 12000), (1920, 10525), (2000, 10104), (2105, 9600), (2400, 8420), (2526, 8000), (3000, 6736), (3200, 6315), (3368, 6000), (4000, 5052), (4210, 4800)]