15219520

素因数分解:

$2^6\times 5^1\times {\mathrm{199}}^1\times {\mathrm{239}}^1$

素因数の和:455

約数の個数: 56

約数和(自身を含む): 36576000

約数和(自身を除く): 21356480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 199, 239, 320, 398, 478, 796, 956, 995, 1195, 1592, 1912, 1990, 2390, 3184, 3824, 3980, 4780, 6368, 7648, 7960, 9560, 12736, 15296, 15920, 19120, 31840, 38240, 47561, 63680, 76480, 95122, 190244, 237805, 380488, 475610, 760976, 951220, 1521952, 1902440, 3043904, 3804880, 7609760, 15219520]

約数ペア:

[(1, 15219520), (2, 7609760), (4, 3804880), (5, 3043904), (8, 1902440), (10, 1521952), (16, 951220), (20, 760976), (32, 475610), (40, 380488), (64, 237805), (80, 190244), (160, 95122), (199, 76480), (239, 63680), (320, 47561), (398, 38240), (478, 31840), (796, 19120), (956, 15920), (995, 15296), (1195, 12736), (1592, 9560), (1912, 7960), (1990, 7648), (2390, 6368), (3184, 4780), (3824, 3980)]