30212840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{107903}}^1$

素因数の和:107921

約数の個数: 32

約数和(自身を含む): 77690880

約数和(自身を除く): 47478040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 107903, 215806, 431612, 539515, 755321, 863224, 1079030, 1510642, 2158060, 3021284, 3776605, 4316120, 6042568, 7553210, 15106420, 30212840]

約数ペア:

[(1, 30212840), (2, 15106420), (4, 7553210), (5, 6042568), (7, 4316120), (8, 3776605), (10, 3021284), (14, 2158060), (20, 1510642), (28, 1079030), (35, 863224), (40, 755321), (56, 539515), (70, 431612), (140, 215806), (280, 107903)]