31780960

素因数分解:

$2^5\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1429}}^1$

素因数の和:1583

約数の個数: 48

約数和(自身を含む): 75675600

約数和(自身を除く): 43894640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 139, 160, 278, 556, 695, 1112, 1390, 1429, 2224, 2780, 2858, 4448, 5560, 5716, 7145, 11120, 11432, 14290, 22240, 22864, 28580, 45728, 57160, 114320, 198631, 228640, 397262, 794524, 993155, 1589048, 1986310, 3178096, 3972620, 6356192, 7945240, 15890480, 31780960]

約数ペア:

[(1, 31780960), (2, 15890480), (4, 7945240), (5, 6356192), (8, 3972620), (10, 3178096), (16, 1986310), (20, 1589048), (32, 993155), (40, 794524), (80, 397262), (139, 228640), (160, 198631), (278, 114320), (556, 57160), (695, 45728), (1112, 28580), (1390, 22864), (1429, 22240), (2224, 14290), (2780, 11432), (2858, 11120), (4448, 7145), (5560, 5716)]