209289904

素因数分解:

$2^4\times {\mathrm{127}}^2\times {\mathrm{811}}^1$

素因数の和:1073

約数の個数: 30

約数和(自身を含む): 409221204

約数和(自身を除く): 199931300

約数列:

[1, 2, 4, 8, 16, 127, 254, 508, 811, 1016, 1622, 2032, 3244, 6488, 12976, 16129, 32258, 64516, 102997, 129032, 205994, 258064, 411988, 823976, 1647952, 13080619, 26161238, 52322476, 104644952, 209289904]

約数ペア:

[(1, 209289904), (2, 104644952), (4, 52322476), (8, 26161238), (16, 13080619), (127, 1647952), (254, 823976), (508, 411988), (811, 258064), (1016, 205994), (1622, 129032), (2032, 102997), (3244, 64516), (6488, 32258), (12976, 16129)]