28856905

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{4409}}^1$

素因数の和:4449

約数の個数: 32

約数和(自身を含む): 45722880

約数和(自身を除く): 16865975

約数列:

[1, 5, 7, 11, 17, 35, 55, 77, 85, 119, 187, 385, 595, 935, 1309, 4409, 6545, 22045, 30863, 48499, 74953, 154315, 242495, 339493, 374765, 524671, 824483, 1697465, 2623355, 4122415, 5771381, 28856905]

約数ペア:

[(1, 28856905), (5, 5771381), (7, 4122415), (11, 2623355), (17, 1697465), (35, 824483), (55, 524671), (77, 374765), (85, 339493), (119, 242495), (187, 154315), (385, 74953), (595, 48499), (935, 30863), (1309, 22045), (4409, 6545)]