30981500

素因数分解:

$2^2\times 5^3\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:204

約数の個数: 96

約数和(自身を含む): 76108032

約数和(自身を除く): 45126532

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 43, 44, 50, 55, 86, 100, 110, 125, 131, 172, 215, 220, 250, 262, 275, 430, 473, 500, 524, 550, 655, 860, 946, 1075, 1100, 1310, 1375, 1441, 1892, 2150, 2365, 2620, 2750, 2882, 3275, 4300, 4730, 5375, 5500, 5633, 5764, 6550, 7205, 9460, 10750, 11266, 11825, 13100, 14410, 16375, 21500, 22532, 23650, 28165, 28820, 32750, 36025, 47300, 56330, 59125, 61963, 65500, 72050, 112660, 118250, 123926, 140825, 144100, 180125, 236500, 247852, 281650, 309815, 360250, 563300, 619630, 704125, 720500, 1239260, 1408250, 1549075, 2816500, 3098150, 6196300, 7745375, 15490750, 30981500]

約数ペア:

[(1, 30981500), (2, 15490750), (4, 7745375), (5, 6196300), (10, 3098150), (11, 2816500), (20, 1549075), (22, 1408250), (25, 1239260), (43, 720500), (44, 704125), (50, 619630), (55, 563300), (86, 360250), (100, 309815), (110, 281650), (125, 247852), (131, 236500), (172, 180125), (215, 144100), (220, 140825), (250, 123926), (262, 118250), (275, 112660), (430, 72050), (473, 65500), (500, 61963), (524, 59125), (550, 56330), (655, 47300), (860, 36025), (946, 32750), (1075, 28820), (1100, 28165), (1310, 23650), (1375, 22532), (1441, 21500), (1892, 16375), (2150, 14410), (2365, 13100), (2620, 11825), (2750, 11266), (2882, 10750), (3275, 9460), (4300, 7205), (4730, 6550), (5375, 5764), (5500, 5633)]