28972000

素因数分解:

$2^5\times 5^3\times {\mathrm{7243}}^1$

素因数の和:7268

約数の個数: 48

約数和(自身を含む): 71194032

約数和(自身を除く): 42222032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 4000, 7243, 14486, 28972, 36215, 57944, 72430, 115888, 144860, 181075, 231776, 289720, 362150, 579440, 724300, 905375, 1158880, 1448600, 1810750, 2897200, 3621500, 5794400, 7243000, 14486000, 28972000]

約数ペア:

[(1, 28972000), (2, 14486000), (4, 7243000), (5, 5794400), (8, 3621500), (10, 2897200), (16, 1810750), (20, 1448600), (25, 1158880), (32, 905375), (40, 724300), (50, 579440), (80, 362150), (100, 289720), (125, 231776), (160, 181075), (200, 144860), (250, 115888), (400, 72430), (500, 57944), (800, 36215), (1000, 28972), (2000, 14486), (4000, 7243)]