81480700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{2707}}^1$

素因数の和:2771

約数の個数: 72

約数和(自身を含む): 206847872

約数和(自身を除く): 125367172

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 43, 50, 70, 86, 100, 140, 172, 175, 215, 301, 350, 430, 602, 700, 860, 1075, 1204, 1505, 2150, 2707, 3010, 4300, 5414, 6020, 7525, 10828, 13535, 15050, 18949, 27070, 30100, 37898, 54140, 67675, 75796, 94745, 116401, 135350, 189490, 232802, 270700, 378980, 465604, 473725, 582005, 814807, 947450, 1164010, 1629614, 1894900, 2328020, 2910025, 3259228, 4074035, 5820050, 8148070, 11640100, 16296140, 20370175, 40740350, 81480700]

約数ペア:

[(1, 81480700), (2, 40740350), (4, 20370175), (5, 16296140), (7, 11640100), (10, 8148070), (14, 5820050), (20, 4074035), (25, 3259228), (28, 2910025), (35, 2328020), (43, 1894900), (50, 1629614), (70, 1164010), (86, 947450), (100, 814807), (140, 582005), (172, 473725), (175, 465604), (215, 378980), (301, 270700), (350, 232802), (430, 189490), (602, 135350), (700, 116401), (860, 94745), (1075, 75796), (1204, 67675), (1505, 54140), (2150, 37898), (2707, 30100), (3010, 27070), (4300, 18949), (5414, 15050), (6020, 13535), (7525, 10828)]