905012920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{3232189}}^1$

素因数の和:3232207

約数の個数: 32

約数和(自身を含む): 2327176800

約数和(自身を除く): 1422163880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 3232189, 6464378, 12928756, 16160945, 22625323, 25857512, 32321890, 45250646, 64643780, 90501292, 113126615, 129287560, 181002584, 226253230, 452506460, 905012920]

約数ペア:

[(1, 905012920), (2, 452506460), (4, 226253230), (5, 181002584), (7, 129287560), (8, 113126615), (10, 90501292), (14, 64643780), (20, 45250646), (28, 32321890), (35, 25857512), (40, 22625323), (56, 16160945), (70, 12928756), (140, 6464378), (280, 3232189)]