81660465

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{257}}^1\times {\mathrm{307}}^1$

素因数の和:598

約数の個数: 48

約数和(自身を含む): 148756608

約数和(自身を除く): 67096143

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 257, 307, 345, 771, 921, 1035, 1285, 1535, 2313, 2763, 3855, 4605, 5911, 7061, 11565, 13815, 17733, 21183, 29555, 35305, 53199, 63549, 78899, 88665, 105915, 236697, 265995, 317745, 394495, 710091, 1183485, 1814677, 3550455, 5444031, 9073385, 16332093, 27220155, 81660465]

約数ペア:

[(1, 81660465), (3, 27220155), (5, 16332093), (9, 9073385), (15, 5444031), (23, 3550455), (45, 1814677), (69, 1183485), (115, 710091), (207, 394495), (257, 317745), (307, 265995), (345, 236697), (771, 105915), (921, 88665), (1035, 78899), (1285, 63549), (1535, 53199), (2313, 35305), (2763, 29555), (3855, 21183), (4605, 17733), (5911, 13815), (7061, 11565)]