19027040

素因数分解:

$2^5\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1091}}^1$

素因数の和:1215

約数の個数: 48

約数和(自身を含む): 45405360

約数和(自身を除く): 26378320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 109, 160, 218, 436, 545, 872, 1090, 1091, 1744, 2180, 2182, 3488, 4360, 4364, 5455, 8720, 8728, 10910, 17440, 17456, 21820, 34912, 43640, 87280, 118919, 174560, 237838, 475676, 594595, 951352, 1189190, 1902704, 2378380, 3805408, 4756760, 9513520, 19027040]

約数ペア:

[(1, 19027040), (2, 9513520), (4, 4756760), (5, 3805408), (8, 2378380), (10, 1902704), (16, 1189190), (20, 951352), (32, 594595), (40, 475676), (80, 237838), (109, 174560), (160, 118919), (218, 87280), (436, 43640), (545, 34912), (872, 21820), (1090, 17456), (1091, 17440), (1744, 10910), (2180, 8728), (2182, 8720), (3488, 5455), (4360, 4364)]