25790180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{353}}^1$

素因数の和:656

約数の個数: 48

約数和(自身を含む): 58698864

約数和(自身を除く): 32908684

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 281, 353, 562, 706, 1124, 1405, 1412, 1765, 2810, 3530, 3653, 4589, 5620, 7060, 7306, 9178, 14612, 18265, 18356, 22945, 36530, 45890, 73060, 91780, 99193, 198386, 396772, 495965, 991930, 1289509, 1983860, 2579018, 5158036, 6447545, 12895090, 25790180]

約数ペア:

[(1, 25790180), (2, 12895090), (4, 6447545), (5, 5158036), (10, 2579018), (13, 1983860), (20, 1289509), (26, 991930), (52, 495965), (65, 396772), (130, 198386), (260, 99193), (281, 91780), (353, 73060), (562, 45890), (706, 36530), (1124, 22945), (1405, 18356), (1412, 18265), (1765, 14612), (2810, 9178), (3530, 7306), (3653, 7060), (4589, 5620)]