2015199920

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{475283}}^1$

素因数の和:475349

約数の個数: 40

約数和(自身を含む): 4773752496

約数和(自身を除く): 2758552576

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 4240, 475283, 950566, 1901132, 2376415, 3802264, 4752830, 7604528, 9505660, 19011320, 25189999, 38022640, 50379998, 100759996, 125949995, 201519992, 251899990, 403039984, 503799980, 1007599960, 2015199920]

約数ペア:

[(1, 2015199920), (2, 1007599960), (4, 503799980), (5, 403039984), (8, 251899990), (10, 201519992), (16, 125949995), (20, 100759996), (40, 50379998), (53, 38022640), (80, 25189999), (106, 19011320), (212, 9505660), (265, 7604528), (424, 4752830), (530, 3802264), (848, 2376415), (1060, 1901132), (2120, 950566), (4240, 475283)]