19894400

素因数分解:

$2^7\times 5^2\times {\mathrm{6217}}^1$

素因数の和:6241

約数の個数: 48

約数和(自身を含む): 49153290

約数和(自身を除く): 29258890

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, 6217, 12434, 24868, 31085, 49736, 62170, 99472, 124340, 155425, 198944, 248680, 310850, 397888, 497360, 621700, 795776, 994720, 1243400, 1989440, 2486800, 3978880, 4973600, 9947200, 19894400]

約数ペア:

[(1, 19894400), (2, 9947200), (4, 4973600), (5, 3978880), (8, 2486800), (10, 1989440), (16, 1243400), (20, 994720), (25, 795776), (32, 621700), (40, 497360), (50, 397888), (64, 310850), (80, 248680), (100, 198944), (128, 155425), (160, 124340), (200, 99472), (320, 62170), (400, 49736), (640, 31085), (800, 24868), (1600, 12434), (3200, 6217)]