997990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{269}}^1$

素因数の和:336

約数の個数: 32

約数和(自身を含む): 2099520

約数和(自身を除く): 1101530

約数列:

[1, 2, 5, 7, 10, 14, 35, 53, 70, 106, 265, 269, 371, 530, 538, 742, 1345, 1855, 1883, 2690, 3710, 3766, 9415, 14257, 18830, 28514, 71285, 99799, 142570, 199598, 498995, 997990]

約数ペア:

[(1, 997990), (2, 498995), (5, 199598), (7, 142570), (10, 99799), (14, 71285), (35, 28514), (53, 18830), (70, 14257), (106, 9415), (265, 3766), (269, 3710), (371, 2690), (530, 1883), (538, 1855), (742, 1345)]