81209655

素因数分解:

$3^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{12799}}^1$

素因数の和:12860

約数の個数: 32

約数和(自身を含む): 147456000

約数和(自身を除く): 66246345

約数列:

[1, 3, 5, 9, 15, 27, 45, 47, 135, 141, 235, 423, 705, 1269, 2115, 6345, 12799, 38397, 63995, 115191, 191985, 345573, 575955, 601553, 1727865, 1804659, 3007765, 5413977, 9023295, 16241931, 27069885, 81209655]

約数ペア:

[(1, 81209655), (3, 27069885), (5, 16241931), (9, 9023295), (15, 5413977), (27, 3007765), (45, 1804659), (47, 1727865), (135, 601553), (141, 575955), (235, 345573), (423, 191985), (705, 115191), (1269, 63995), (2115, 38397), (6345, 12799)]