17996020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{673}}^1$

素因数の和:880

約数の個数: 48

約数和(自身を含む): 43481088

約数和(自身を除く): 25485068

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 191, 382, 673, 764, 955, 1337, 1346, 1910, 2674, 2692, 3365, 3820, 4711, 5348, 6685, 6730, 9422, 13370, 13460, 18844, 23555, 26740, 47110, 94220, 128543, 257086, 514172, 642715, 899801, 1285430, 1799602, 2570860, 3599204, 4499005, 8998010, 17996020]

約数ペア:

[(1, 17996020), (2, 8998010), (4, 4499005), (5, 3599204), (7, 2570860), (10, 1799602), (14, 1285430), (20, 899801), (28, 642715), (35, 514172), (70, 257086), (140, 128543), (191, 94220), (382, 47110), (673, 26740), (764, 23555), (955, 18844), (1337, 13460), (1346, 13370), (1910, 9422), (2674, 6730), (2692, 6685), (3365, 5348), (3820, 4711)]