159080

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1$

素因数の和:149

約数の個数: 32

約数和(自身を含む): 370440

約数和(自身を除く): 211360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 97, 164, 194, 205, 328, 388, 410, 485, 776, 820, 970, 1640, 1940, 3880, 3977, 7954, 15908, 19885, 31816, 39770, 79540, 159080]

約数ペア:

[(1, 159080), (2, 79540), (4, 39770), (5, 31816), (8, 19885), (10, 15908), (20, 7954), (40, 3977), (41, 3880), (82, 1940), (97, 1640), (164, 970), (194, 820), (205, 776), (328, 485), (388, 410)]