398936640

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{415559}}^1$

素因数の和:415579

約数の個数: 56

約数和(自身を含む): 1266626880

約数和(自身を除く): 867690240

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, 160, 192, 240, 320, 480, 960, 415559, 831118, 1246677, 1662236, 2077795, 2493354, 3324472, 4155590, 4986708, 6233385, 6648944, 8311180, 9973416, 12466770, 13297888, 16622360, 19946832, 24933540, 26595776, 33244720, 39893664, 49867080, 66489440, 79787328, 99734160, 132978880, 199468320, 398936640]

約数ペア:

[(1, 398936640), (2, 199468320), (3, 132978880), (4, 99734160), (5, 79787328), (6, 66489440), (8, 49867080), (10, 39893664), (12, 33244720), (15, 26595776), (16, 24933540), (20, 19946832), (24, 16622360), (30, 13297888), (32, 12466770), (40, 9973416), (48, 8311180), (60, 6648944), (64, 6233385), (80, 4986708), (96, 4155590), (120, 3324472), (160, 2493354), (192, 2077795), (240, 1662236), (320, 1246677), (480, 831118), (960, 415559)]