25499890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{3701}}^1$

素因数の和:3774

約数の個数: 32

約数和(自身を含む): 50376816

約数和(自身を除く): 24876926

約数列:

[1, 2, 5, 10, 13, 26, 53, 65, 106, 130, 265, 530, 689, 1378, 3445, 3701, 6890, 7402, 18505, 37010, 48113, 96226, 196153, 240565, 392306, 481130, 980765, 1961530, 2549989, 5099978, 12749945, 25499890]

約数ペア:

[(1, 25499890), (2, 12749945), (5, 5099978), (10, 2549989), (13, 1961530), (26, 980765), (53, 481130), (65, 392306), (106, 240565), (130, 196153), (265, 96226), (530, 48113), (689, 37010), (1378, 18505), (3445, 7402), (3701, 6890)]