30640000

素因数分解:

$2^7\times 5^4\times {\mathrm{383}}^1$

素因数の和:417

約数の個数: 80

約数和(自身を含む): 76475520

約数和(自身を除く): 45835520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 320, 383, 400, 500, 625, 640, 766, 800, 1000, 1250, 1532, 1600, 1915, 2000, 2500, 3064, 3200, 3830, 4000, 5000, 6128, 7660, 8000, 9575, 10000, 12256, 15320, 16000, 19150, 20000, 24512, 30640, 38300, 40000, 47875, 49024, 61280, 76600, 80000, 95750, 122560, 153200, 191500, 239375, 245120, 306400, 383000, 478750, 612800, 766000, 957500, 1225600, 1532000, 1915000, 3064000, 3830000, 6128000, 7660000, 15320000, 30640000]

約数ペア:

[(1, 30640000), (2, 15320000), (4, 7660000), (5, 6128000), (8, 3830000), (10, 3064000), (16, 1915000), (20, 1532000), (25, 1225600), (32, 957500), (40, 766000), (50, 612800), (64, 478750), (80, 383000), (100, 306400), (125, 245120), (128, 239375), (160, 191500), (200, 153200), (250, 122560), (320, 95750), (383, 80000), (400, 76600), (500, 61280), (625, 49024), (640, 47875), (766, 40000), (800, 38300), (1000, 30640), (1250, 24512), (1532, 20000), (1600, 19150), (1915, 16000), (2000, 15320), (2500, 12256), (3064, 10000), (3200, 9575), (3830, 8000), (4000, 7660), (5000, 6128)]