28543580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{353}}^1$

素因数の和:686

約数の個数: 48

約数和(自身を含む): 64943424

約数和(自身を除く): 36399844

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 311, 353, 622, 706, 1244, 1412, 1555, 1765, 3110, 3530, 4043, 4589, 6220, 7060, 8086, 9178, 16172, 18356, 20215, 22945, 40430, 45890, 80860, 91780, 109783, 219566, 439132, 548915, 1097830, 1427179, 2195660, 2854358, 5708716, 7135895, 14271790, 28543580]

約数ペア:

[(1, 28543580), (2, 14271790), (4, 7135895), (5, 5708716), (10, 2854358), (13, 2195660), (20, 1427179), (26, 1097830), (52, 548915), (65, 439132), (130, 219566), (260, 109783), (311, 91780), (353, 80860), (622, 45890), (706, 40430), (1244, 22945), (1412, 20215), (1555, 18356), (1765, 16172), (3110, 9178), (3530, 8086), (4043, 7060), (4589, 6220)]