19700205

素因数分解:

$3^1\times 5^1\times 7^4\times {\mathrm{547}}^1$

素因数の和:583

約数の個数: 40

約数和(自身を含む): 36838752

約数和(自身を除く): 17138547

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 343, 547, 735, 1029, 1641, 1715, 2401, 2735, 3829, 5145, 7203, 8205, 11487, 12005, 19145, 26803, 36015, 57435, 80409, 134015, 187621, 402045, 562863, 938105, 1313347, 2814315, 3940041, 6566735, 19700205]

約数ペア:

[(1, 19700205), (3, 6566735), (5, 3940041), (7, 2814315), (15, 1313347), (21, 938105), (35, 562863), (49, 402045), (105, 187621), (147, 134015), (245, 80409), (343, 57435), (547, 36015), (735, 26803), (1029, 19145), (1641, 12005), (1715, 11487), (2401, 8205), (2735, 7203), (3829, 5145)]