30400840

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{7103}}^1$

素因数の和:7221

約数の個数: 32

約数和(自身を含む): 69050880

約数和(自身を除く): 38650040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 856, 1070, 2140, 4280, 7103, 14206, 28412, 35515, 56824, 71030, 142060, 284120, 760021, 1520042, 3040084, 3800105, 6080168, 7600210, 15200420, 30400840]

約数ペア:

[(1, 30400840), (2, 15200420), (4, 7600210), (5, 6080168), (8, 3800105), (10, 3040084), (20, 1520042), (40, 760021), (107, 284120), (214, 142060), (428, 71030), (535, 56824), (856, 35515), (1070, 28412), (2140, 14206), (4280, 7103)]