1994320

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{257}}^1$

素因数の和:367

約数の個数: 40

約数和(自身を含む): 4702824

約数和(自身を除く): 2708504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 257, 388, 485, 514, 776, 970, 1028, 1285, 1552, 1940, 2056, 2570, 3880, 4112, 5140, 7760, 10280, 20560, 24929, 49858, 99716, 124645, 199432, 249290, 398864, 498580, 997160, 1994320]

約数ペア:

[(1, 1994320), (2, 997160), (4, 498580), (5, 398864), (8, 249290), (10, 199432), (16, 124645), (20, 99716), (40, 49858), (80, 24929), (97, 20560), (194, 10280), (257, 7760), (388, 5140), (485, 4112), (514, 3880), (776, 2570), (970, 2056), (1028, 1940), (1285, 1552)]