1921720

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{449}}^1$

素因数の和:567

約数の個数: 32

約数和(自身を含む): 4374000

約数和(自身を除く): 2452280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 449, 535, 856, 898, 1070, 1796, 2140, 2245, 3592, 4280, 4490, 8980, 17960, 48043, 96086, 192172, 240215, 384344, 480430, 960860, 1921720]

約数ペア:

[(1, 1921720), (2, 960860), (4, 480430), (5, 384344), (8, 240215), (10, 192172), (20, 96086), (40, 48043), (107, 17960), (214, 8980), (428, 4490), (449, 4280), (535, 3592), (856, 2245), (898, 2140), (1070, 1796)]