421139980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1238647}}^1$

素因数の和:1238673

約数の個数: 24

約数和(自身を含む): 936417888

約数和(自身を除く): 515277908

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 1238647, 2477294, 4954588, 6193235, 12386470, 21056999, 24772940, 42113998, 84227996, 105284995, 210569990, 421139980]

約数ペア:

[(1, 421139980), (2, 210569990), (4, 105284995), (5, 84227996), (10, 42113998), (17, 24772940), (20, 21056999), (34, 12386470), (68, 6193235), (85, 4954588), (170, 2477294), (340, 1238647)]