81320280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{311}}^1\times {\mathrm{2179}}^1$

素因数の和:2504

約数の個数: 64

約数和(自身を含む): 244857600

約数和(自身を除く): 163537320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 311, 622, 933, 1244, 1555, 1866, 2179, 2488, 3110, 3732, 4358, 4665, 6220, 6537, 7464, 8716, 9330, 10895, 12440, 13074, 17432, 18660, 21790, 26148, 32685, 37320, 43580, 52296, 65370, 87160, 130740, 261480, 677669, 1355338, 2033007, 2710676, 3388345, 4066014, 5421352, 6776690, 8132028, 10165035, 13553380, 16264056, 20330070, 27106760, 40660140, 81320280]

約数ペア:

[(1, 81320280), (2, 40660140), (3, 27106760), (4, 20330070), (5, 16264056), (6, 13553380), (8, 10165035), (10, 8132028), (12, 6776690), (15, 5421352), (20, 4066014), (24, 3388345), (30, 2710676), (40, 2033007), (60, 1355338), (120, 677669), (311, 261480), (622, 130740), (933, 87160), (1244, 65370), (1555, 52296), (1866, 43580), (2179, 37320), (2488, 32685), (3110, 26148), (3732, 21790), (4358, 18660), (4665, 17432), (6220, 13074), (6537, 12440), (7464, 10895), (8716, 9330)]