129440440

素因数分解:

$2^3\times 5^1\times {\mathrm{271}}^1\times {\mathrm{11941}}^1$

素因数の和:12223

約数の個数: 32

約数和(自身を含む): 292340160

約数和(自身を除く): 162899720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 271, 542, 1084, 1355, 2168, 2710, 5420, 10840, 11941, 23882, 47764, 59705, 95528, 119410, 238820, 477640, 3236011, 6472022, 12944044, 16180055, 25888088, 32360110, 64720220, 129440440]

約数ペア:

[(1, 129440440), (2, 64720220), (4, 32360110), (5, 25888088), (8, 16180055), (10, 12944044), (20, 6472022), (40, 3236011), (271, 477640), (542, 238820), (1084, 119410), (1355, 95528), (2168, 59705), (2710, 47764), (5420, 23882), (10840, 11941)]