30505720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{108949}}^1$

素因数の和:108967

約数の個数: 32

約数和(自身を含む): 78444000

約数和(自身を除く): 47938280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 108949, 217898, 435796, 544745, 762643, 871592, 1089490, 1525286, 2178980, 3050572, 3813215, 4357960, 6101144, 7626430, 15252860, 30505720]

約数ペア:

[(1, 30505720), (2, 15252860), (4, 7626430), (5, 6101144), (7, 4357960), (8, 3813215), (10, 3050572), (14, 2178980), (20, 1525286), (28, 1089490), (35, 871592), (40, 762643), (56, 544745), (70, 435796), (140, 217898), (280, 108949)]