81602000

素因数分解:

$2^4\times 5^3\times {\mathrm{40801}}^1$

素因数の和:40824

約数の個数: 40

約数和(自身を含む): 197318472

約数和(自身を除く): 115716472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 40801, 81602, 163204, 204005, 326408, 408010, 652816, 816020, 1020025, 1632040, 2040050, 3264080, 4080100, 5100125, 8160200, 10200250, 16320400, 20400500, 40801000, 81602000]

約数ペア:

[(1, 81602000), (2, 40801000), (4, 20400500), (5, 16320400), (8, 10200250), (10, 8160200), (16, 5100125), (20, 4080100), (25, 3264080), (40, 2040050), (50, 1632040), (80, 1020025), (100, 816020), (125, 652816), (200, 408010), (250, 326408), (400, 204005), (500, 163204), (1000, 81602), (2000, 40801)]