398913880

素因数分解:

$2^3\times 5^1\times {\mathrm{1499}}^1\times {\mathrm{6653}}^1$

素因数の和:8163

約数の個数: 32

約数和(自身を含む): 898290000

約数和(自身を除く): 499376120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1499, 2998, 5996, 6653, 7495, 11992, 13306, 14990, 26612, 29980, 33265, 53224, 59960, 66530, 133060, 266120, 9972847, 19945694, 39891388, 49864235, 79782776, 99728470, 199456940, 398913880]

約数ペア:

[(1, 398913880), (2, 199456940), (4, 99728470), (5, 79782776), (8, 49864235), (10, 39891388), (20, 19945694), (40, 9972847), (1499, 266120), (2998, 133060), (5996, 66530), (6653, 59960), (7495, 53224), (11992, 33265), (13306, 29980), (14990, 26612)]