20607760

素因数分解:

$2^4\times 5^1\times {\mathrm{173}}^1\times {\mathrm{1489}}^1$

素因数の和:1675

約数の個数: 40

約数和(自身を含む): 48222360

約数和(自身を除く): 27614600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 173, 346, 692, 865, 1384, 1489, 1730, 2768, 2978, 3460, 5956, 6920, 7445, 11912, 13840, 14890, 23824, 29780, 59560, 119120, 257597, 515194, 1030388, 1287985, 2060776, 2575970, 4121552, 5151940, 10303880, 20607760]

約数ペア:

[(1, 20607760), (2, 10303880), (4, 5151940), (5, 4121552), (8, 2575970), (10, 2060776), (16, 1287985), (20, 1030388), (40, 515194), (80, 257597), (173, 119120), (346, 59560), (692, 29780), (865, 23824), (1384, 14890), (1489, 13840), (1730, 11912), (2768, 7445), (2978, 6920), (3460, 5956)]