49898000

素因数分解:

$2^4\times 5^3\times {\mathrm{61}}^1\times {\mathrm{409}}^1$

素因数の和:493

約数の個数: 80

約数和(自身を含む): 122931120

約数和(自身を除く): 73033120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 61, 80, 100, 122, 125, 200, 244, 250, 305, 400, 409, 488, 500, 610, 818, 976, 1000, 1220, 1525, 1636, 2000, 2045, 2440, 3050, 3272, 4090, 4880, 6100, 6544, 7625, 8180, 10225, 12200, 15250, 16360, 20450, 24400, 24949, 30500, 32720, 40900, 49898, 51125, 61000, 81800, 99796, 102250, 122000, 124745, 163600, 199592, 204500, 249490, 399184, 409000, 498980, 623725, 818000, 997960, 1247450, 1995920, 2494900, 3118625, 4989800, 6237250, 9979600, 12474500, 24949000, 49898000]

約数ペア:

[(1, 49898000), (2, 24949000), (4, 12474500), (5, 9979600), (8, 6237250), (10, 4989800), (16, 3118625), (20, 2494900), (25, 1995920), (40, 1247450), (50, 997960), (61, 818000), (80, 623725), (100, 498980), (122, 409000), (125, 399184), (200, 249490), (244, 204500), (250, 199592), (305, 163600), (400, 124745), (409, 122000), (488, 102250), (500, 99796), (610, 81800), (818, 61000), (976, 51125), (1000, 49898), (1220, 40900), (1525, 32720), (1636, 30500), (2000, 24949), (2045, 24400), (2440, 20450), (3050, 16360), (3272, 15250), (4090, 12200), (4880, 10225), (6100, 8180), (6544, 7625)]