18841180

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{30389}}^1$

素因数の和:30429

約数の個数: 24

約数和(自身を含む): 40844160

約数和(自身を除く): 22002980

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 30389, 60778, 121556, 151945, 303890, 607780, 942059, 1884118, 3768236, 4710295, 9420590, 18841180]

約数ペア:

[(1, 18841180), (2, 9420590), (4, 4710295), (5, 3768236), (10, 1884118), (20, 942059), (31, 607780), (62, 303890), (124, 151945), (155, 121556), (310, 60778), (620, 30389)]