89407640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{319313}}^1$

素因数の和:319331

約数の個数: 32

約数和(自身を含む): 229906080

約数和(自身を除く): 140498440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 319313, 638626, 1277252, 1596565, 2235191, 2554504, 3193130, 4470382, 6386260, 8940764, 11175955, 12772520, 17881528, 22351910, 44703820, 89407640]

約数ペア:

[(1, 89407640), (2, 44703820), (4, 22351910), (5, 17881528), (7, 12772520), (8, 11175955), (10, 8940764), (14, 6386260), (20, 4470382), (28, 3193130), (35, 2554504), (40, 2235191), (56, 1596565), (70, 1277252), (140, 638626), (280, 319313)]