9979600

素因数分解:

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

素因数の和:488

約数の個数: 60

約数和(自身を含む): 24428620

約数和(自身を除く): 14449020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 61, 80, 100, 122, 200, 244, 305, 400, 409, 488, 610, 818, 976, 1220, 1525, 1636, 2045, 2440, 3050, 3272, 4090, 4880, 6100, 6544, 8180, 10225, 12200, 16360, 20450, 24400, 24949, 32720, 40900, 49898, 81800, 99796, 124745, 163600, 199592, 249490, 399184, 498980, 623725, 997960, 1247450, 1995920, 2494900, 4989800, 9979600]

約数ペア:

[(1, 9979600), (2, 4989800), (4, 2494900), (5, 1995920), (8, 1247450), (10, 997960), (16, 623725), (20, 498980), (25, 399184), (40, 249490), (50, 199592), (61, 163600), (80, 124745), (100, 99796), (122, 81800), (200, 49898), (244, 40900), (305, 32720), (400, 24949), (409, 24400), (488, 20450), (610, 16360), (818, 12200), (976, 10225), (1220, 8180), (1525, 6544), (1636, 6100), (2045, 4880), (2440, 4090), (3050, 3272)]