30571960

素因数分解:

$2^3\times 5^1\times {\mathrm{439}}^1\times {\mathrm{1741}}^1$

素因数の和:2191

約数の個数: 32

約数和(自身を含む): 68983200

約数和(自身を除く): 38411240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 439, 878, 1741, 1756, 2195, 3482, 3512, 4390, 6964, 8705, 8780, 13928, 17410, 17560, 34820, 69640, 764299, 1528598, 3057196, 3821495, 6114392, 7642990, 15285980, 30571960]

約数ペア:

[(1, 30571960), (2, 15285980), (4, 7642990), (5, 6114392), (8, 3821495), (10, 3057196), (20, 1528598), (40, 764299), (439, 69640), (878, 34820), (1741, 17560), (1756, 17410), (2195, 13928), (3482, 8780), (3512, 8705), (4390, 6964)]