30784840

素因数分解:

$2^3\times 5^1\times {\mathrm{563}}^1\times {\mathrm{1367}}^1$

素因数の和:1941

約数の個数: 32

約数和(自身を含む): 69439680

約数和(自身を除く): 38654840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 563, 1126, 1367, 2252, 2734, 2815, 4504, 5468, 5630, 6835, 10936, 11260, 13670, 22520, 27340, 54680, 769621, 1539242, 3078484, 3848105, 6156968, 7696210, 15392420, 30784840]

約数ペア:

[(1, 30784840), (2, 15392420), (4, 7696210), (5, 6156968), (8, 3848105), (10, 3078484), (20, 1539242), (40, 769621), (563, 54680), (1126, 27340), (1367, 22520), (2252, 13670), (2734, 11260), (2815, 10936), (4504, 6835), (5468, 5630)]