16541840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{271}}^1$

素因数の和:400

約数の個数: 80

約数和(自身を含む): 44520960

約数和(自身を除く): 27979120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 109, 112, 140, 218, 271, 280, 436, 542, 545, 560, 763, 872, 1084, 1090, 1355, 1526, 1744, 1897, 2168, 2180, 2710, 3052, 3794, 3815, 4336, 4360, 5420, 6104, 7588, 7630, 8720, 9485, 10840, 12208, 15176, 15260, 18970, 21680, 29539, 30352, 30520, 37940, 59078, 61040, 75880, 118156, 147695, 151760, 206773, 236312, 295390, 413546, 472624, 590780, 827092, 1033865, 1181560, 1654184, 2067730, 2363120, 3308368, 4135460, 8270920, 16541840]

約数ペア:

[(1, 16541840), (2, 8270920), (4, 4135460), (5, 3308368), (7, 2363120), (8, 2067730), (10, 1654184), (14, 1181560), (16, 1033865), (20, 827092), (28, 590780), (35, 472624), (40, 413546), (56, 295390), (70, 236312), (80, 206773), (109, 151760), (112, 147695), (140, 118156), (218, 75880), (271, 61040), (280, 59078), (436, 37940), (542, 30520), (545, 30352), (560, 29539), (763, 21680), (872, 18970), (1084, 15260), (1090, 15176), (1355, 12208), (1526, 10840), (1744, 9485), (1897, 8720), (2168, 7630), (2180, 7588), (2710, 6104), (3052, 5420), (3794, 4360), (3815, 4336)]