18936332960

素因数分解:

$2^5\times 5^1\times {\mathrm{131}}^1\times {\mathrm{903451}}^1$

素因数の和:903597

約数の個数: 48

約数和(自身を含む): 45078640992

約数和(自身を除く): 26142308032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 131, 160, 262, 524, 655, 1048, 1310, 2096, 2620, 4192, 5240, 10480, 20960, 903451, 1806902, 3613804, 4517255, 7227608, 9034510, 14455216, 18069020, 28910432, 36138040, 72276080, 118352081, 144552160, 236704162, 473408324, 591760405, 946816648, 1183520810, 1893633296, 2367041620, 3787266592, 4734083240, 9468166480, 18936332960]

約数ペア:

[(1, 18936332960), (2, 9468166480), (4, 4734083240), (5, 3787266592), (8, 2367041620), (10, 1893633296), (16, 1183520810), (20, 946816648), (32, 591760405), (40, 473408324), (80, 236704162), (131, 144552160), (160, 118352081), (262, 72276080), (524, 36138040), (655, 28910432), (1048, 18069020), (1310, 14455216), (2096, 9034510), (2620, 7227608), (4192, 4517255), (5240, 3613804), (10480, 1806902), (20960, 903451)]