331319080

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{199}}^1\times {\mathrm{389}}^1$

素因数の和:706

約数の個数: 64

約数和(自身を含む): 758160000

約数和(自身を除く): 426840920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 199, 214, 389, 398, 428, 535, 778, 796, 856, 995, 1070, 1556, 1592, 1945, 1990, 2140, 3112, 3890, 3980, 4280, 7780, 7960, 15560, 21293, 41623, 42586, 77411, 83246, 85172, 106465, 154822, 166492, 170344, 208115, 212930, 309644, 332984, 387055, 416230, 425860, 619288, 774110, 832460, 851720, 1548220, 1664920, 3096440, 8282977, 16565954, 33131908, 41414885, 66263816, 82829770, 165659540, 331319080]

約数ペア:

[(1, 331319080), (2, 165659540), (4, 82829770), (5, 66263816), (8, 41414885), (10, 33131908), (20, 16565954), (40, 8282977), (107, 3096440), (199, 1664920), (214, 1548220), (389, 851720), (398, 832460), (428, 774110), (535, 619288), (778, 425860), (796, 416230), (856, 387055), (995, 332984), (1070, 309644), (1556, 212930), (1592, 208115), (1945, 170344), (1990, 166492), (2140, 154822), (3112, 106465), (3890, 85172), (3980, 83246), (4280, 77411), (7780, 42586), (7960, 41623), (15560, 21293)]