1820009920

素因数分解:

$2^6\times 5^1\times {\mathrm{5687531}}^1$

素因数の和:5687548

約数の個数: 28

約数和(自身を含む): 4333899384

約数和(自身を除く): 2513889464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 5687531, 11375062, 22750124, 28437655, 45500248, 56875310, 91000496, 113750620, 182000992, 227501240, 364001984, 455002480, 910004960, 1820009920]

約数ペア:

[(1, 1820009920), (2, 910004960), (4, 455002480), (5, 364001984), (8, 227501240), (10, 182000992), (16, 113750620), (20, 91000496), (32, 56875310), (40, 45500248), (64, 28437655), (80, 22750124), (160, 11375062), (320, 5687531)]