30878000

素因数分解:

$2^4\times 5^3\times {\mathrm{15439}}^1$

素因数の和:15462

約数の個数: 40

約数和(自身を含む): 74667840

約数和(自身を除く): 43789840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 15439, 30878, 61756, 77195, 123512, 154390, 247024, 308780, 385975, 617560, 771950, 1235120, 1543900, 1929875, 3087800, 3859750, 6175600, 7719500, 15439000, 30878000]

約数ペア:

[(1, 30878000), (2, 15439000), (4, 7719500), (5, 6175600), (8, 3859750), (10, 3087800), (16, 1929875), (20, 1543900), (25, 1235120), (40, 771950), (50, 617560), (80, 385975), (100, 308780), (125, 247024), (200, 154390), (250, 123512), (400, 77195), (500, 61756), (1000, 30878), (2000, 15439)]