20491730

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{4799}}^1$

素因数の和:4874

約数の個数: 32

約数和(自身を含む): 42854400

約数和(自身を除く): 22362670

約数列:

[1, 2, 5, 7, 10, 14, 35, 61, 70, 122, 305, 427, 610, 854, 2135, 4270, 4799, 9598, 23995, 33593, 47990, 67186, 167965, 292739, 335930, 585478, 1463695, 2049173, 2927390, 4098346, 10245865, 20491730]

約数ペア:

[(1, 20491730), (2, 10245865), (5, 4098346), (7, 2927390), (10, 2049173), (14, 1463695), (35, 585478), (61, 335930), (70, 292739), (122, 167965), (305, 67186), (427, 47990), (610, 33593), (854, 23995), (2135, 9598), (4270, 4799)]