30906505

素因数分解:

$5^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{1249}}^1$

素因数の和:1369

約数の個数: 24

約数和(自身を含む): 43605000

約数和(自身を除く): 12698495

約数列:

[1, 5, 7, 35, 49, 101, 245, 505, 707, 1249, 3535, 4949, 6245, 8743, 24745, 43715, 61201, 126149, 306005, 630745, 883043, 4415215, 6181301, 30906505]

約数ペア:

[(1, 30906505), (5, 6181301), (7, 4415215), (35, 883043), (49, 630745), (101, 306005), (245, 126149), (505, 61201), (707, 43715), (1249, 24745), (3535, 8743), (4949, 6245)]