8980000

素因数分解:

$2^5\times 5^4\times {\mathrm{449}}^1$

素因数の和:479

約数の個数: 60

約数和(自身を含む): 22141350

約数和(自身を除く): 13161350

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 449, 500, 625, 800, 898, 1000, 1250, 1796, 2000, 2245, 2500, 3592, 4000, 4490, 5000, 7184, 8980, 10000, 11225, 14368, 17960, 20000, 22450, 35920, 44900, 56125, 71840, 89800, 112250, 179600, 224500, 280625, 359200, 449000, 561250, 898000, 1122500, 1796000, 2245000, 4490000, 8980000]

約数ペア:

[(1, 8980000), (2, 4490000), (4, 2245000), (5, 1796000), (8, 1122500), (10, 898000), (16, 561250), (20, 449000), (25, 359200), (32, 280625), (40, 224500), (50, 179600), (80, 112250), (100, 89800), (125, 71840), (160, 56125), (200, 44900), (250, 35920), (400, 22450), (449, 20000), (500, 17960), (625, 14368), (800, 11225), (898, 10000), (1000, 8980), (1250, 7184), (1796, 5000), (2000, 4490), (2245, 4000), (2500, 3592)]