3988640

素因数分解:

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

素因数の和:369

約数の個数: 48

約数和(自身を含む): 9557352

約数和(自身を除く): 5568712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 97, 160, 194, 257, 388, 485, 514, 776, 970, 1028, 1285, 1552, 1940, 2056, 2570, 3104, 3880, 4112, 5140, 7760, 8224, 10280, 15520, 20560, 24929, 41120, 49858, 99716, 124645, 199432, 249290, 398864, 498580, 797728, 997160, 1994320, 3988640]

約数ペア:

[(1, 3988640), (2, 1994320), (4, 997160), (5, 797728), (8, 498580), (10, 398864), (16, 249290), (20, 199432), (32, 124645), (40, 99716), (80, 49858), (97, 41120), (160, 24929), (194, 20560), (257, 15520), (388, 10280), (485, 8224), (514, 7760), (776, 5140), (970, 4112), (1028, 3880), (1285, 3104), (1552, 2570), (1940, 2056)]