55720340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{214309}}^1$

素因数の和:214331

約数の個数: 24

約数和(自身を含む): 126014280

約数和(自身を除く): 70293940

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 214309, 428618, 857236, 1071545, 2143090, 2786017, 4286180, 5572034, 11144068, 13930085, 27860170, 55720340]

約数ペア:

[(1, 55720340), (2, 27860170), (4, 13930085), (5, 11144068), (10, 5572034), (13, 4286180), (20, 2786017), (26, 2143090), (52, 1071545), (65, 857236), (130, 428618), (260, 214309)]