90641920

素因数分解:

$2^9\times 5^1\times {\mathrm{35407}}^1$

素因数の和:35430

約数の個数: 40

約数和(自身を含む): 217334304

約数和(自身を除く): 126692384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 35407, 70814, 141628, 177035, 283256, 354070, 566512, 708140, 1133024, 1416280, 2266048, 2832560, 4532096, 5665120, 9064192, 11330240, 18128384, 22660480, 45320960, 90641920]

約数ペア:

[(1, 90641920), (2, 45320960), (4, 22660480), (5, 18128384), (8, 11330240), (10, 9064192), (16, 5665120), (20, 4532096), (32, 2832560), (40, 2266048), (64, 1416280), (80, 1133024), (128, 708140), (160, 566512), (256, 354070), (320, 283256), (512, 177035), (640, 141628), (1280, 70814), (2560, 35407)]