318160

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1$

素因数の和:151

約数の個数: 40

約数和(自身を含む): 765576

約数和(自身を除く): 447416

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 97, 164, 194, 205, 328, 388, 410, 485, 656, 776, 820, 970, 1552, 1640, 1940, 3280, 3880, 3977, 7760, 7954, 15908, 19885, 31816, 39770, 63632, 79540, 159080, 318160]

約数ペア:

[(1, 318160), (2, 159080), (4, 79540), (5, 63632), (8, 39770), (10, 31816), (16, 19885), (20, 15908), (40, 7954), (41, 7760), (80, 3977), (82, 3880), (97, 3280), (164, 1940), (194, 1640), (205, 1552), (328, 970), (388, 820), (410, 776), (485, 656)]