28631475

素因数分解:

$3^6\times 5^2\times {\mathrm{1571}}^1$

素因数の和:1599

約数の個数: 42

約数和(自身を含む): 53264076

約数和(自身を除く): 24632601

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 243, 405, 675, 729, 1215, 1571, 2025, 3645, 4713, 6075, 7855, 14139, 18225, 23565, 39275, 42417, 70695, 117825, 127251, 212085, 353475, 381753, 636255, 1060425, 1145259, 1908765, 3181275, 5726295, 9543825, 28631475]

約数ペア:

[(1, 28631475), (3, 9543825), (5, 5726295), (9, 3181275), (15, 1908765), (25, 1145259), (27, 1060425), (45, 636255), (75, 381753), (81, 353475), (135, 212085), (225, 127251), (243, 117825), (405, 70695), (675, 42417), (729, 39275), (1215, 23565), (1571, 18225), (2025, 14139), (3645, 7855), (4713, 6075)]