1038440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1997}}^1$

素因数の和:2021

約数の個数: 32

約数和(自身を含む): 2517480

約数和(自身を除く): 1479040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 1997, 3994, 7988, 9985, 15976, 19970, 25961, 39940, 51922, 79880, 103844, 129805, 207688, 259610, 519220, 1038440]

約数ペア:

[(1, 1038440), (2, 519220), (4, 259610), (5, 207688), (8, 129805), (10, 103844), (13, 79880), (20, 51922), (26, 39940), (40, 25961), (52, 19970), (65, 15976), (104, 9985), (130, 7988), (260, 3994), (520, 1997)]