30786680

素因数分解:

$2^3\times 5^1\times {\mathrm{313}}^1\times {\mathrm{2459}}^1$

素因数の和:2783

約数の個数: 32

約数和(自身を含む): 69519600

約数和(自身を除く): 38732920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 313, 626, 1252, 1565, 2459, 2504, 3130, 4918, 6260, 9836, 12295, 12520, 19672, 24590, 49180, 98360, 769667, 1539334, 3078668, 3848335, 6157336, 7696670, 15393340, 30786680]

約数ペア:

[(1, 30786680), (2, 15393340), (4, 7696670), (5, 6157336), (8, 3848335), (10, 3078668), (20, 1539334), (40, 769667), (313, 98360), (626, 49180), (1252, 24590), (1565, 19672), (2459, 12520), (2504, 12295), (3130, 9836), (4918, 6260)]