72724000

素因数分解:

$2^5\times 5^3\times {\mathrm{18181}}^1$

素因数の和:18206

約数の個数: 48

約数和(自身を含む): 178692696

約数和(自身を除く): 105968696

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, 18181, 36362, 72724, 90905, 145448, 181810, 290896, 363620, 454525, 581792, 727240, 909050, 1454480, 1818100, 2272625, 2908960, 3636200, 4545250, 7272400, 9090500, 14544800, 18181000, 36362000, 72724000]

約数ペア:

[(1, 72724000), (2, 36362000), (4, 18181000), (5, 14544800), (8, 9090500), (10, 7272400), (16, 4545250), (20, 3636200), (25, 2908960), (32, 2272625), (40, 1818100), (50, 1454480), (80, 909050), (100, 727240), (125, 581792), (160, 454525), (200, 363620), (250, 290896), (400, 181810), (500, 145448), (800, 90905), (1000, 72724), (2000, 36362), (4000, 18181)]