15338920

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1$

素因数の和:298

約数の個数: 64

約数和(自身を含む): 36288000

約数和(自身を除く): 20949080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 47, 82, 94, 164, 188, 199, 205, 235, 328, 376, 398, 410, 470, 796, 820, 940, 995, 1592, 1640, 1880, 1927, 1990, 3854, 3980, 7708, 7960, 8159, 9353, 9635, 15416, 16318, 18706, 19270, 32636, 37412, 38540, 40795, 46765, 65272, 74824, 77080, 81590, 93530, 163180, 187060, 326360, 374120, 383473, 766946, 1533892, 1917365, 3067784, 3834730, 7669460, 15338920]

約数ペア:

[(1, 15338920), (2, 7669460), (4, 3834730), (5, 3067784), (8, 1917365), (10, 1533892), (20, 766946), (40, 383473), (41, 374120), (47, 326360), (82, 187060), (94, 163180), (164, 93530), (188, 81590), (199, 77080), (205, 74824), (235, 65272), (328, 46765), (376, 40795), (398, 38540), (410, 37412), (470, 32636), (796, 19270), (820, 18706), (940, 16318), (995, 15416), (1592, 9635), (1640, 9353), (1880, 8159), (1927, 7960), (1990, 7708), (3854, 3980)]