21773040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{257}}^1\times {\mathrm{353}}^1$

素因数の和:626

約数の個数: 80

約数和(自身を含む): 67951008

約数和(自身を除く): 46177968

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 257, 353, 514, 706, 771, 1028, 1059, 1285, 1412, 1542, 1765, 2056, 2118, 2570, 2824, 3084, 3530, 3855, 4112, 4236, 5140, 5295, 5648, 6168, 7060, 7710, 8472, 10280, 10590, 12336, 14120, 15420, 16944, 20560, 21180, 28240, 30840, 42360, 61680, 84720, 90721, 181442, 272163, 362884, 453605, 544326, 725768, 907210, 1088652, 1360815, 1451536, 1814420, 2177304, 2721630, 3628840, 4354608, 5443260, 7257680, 10886520, 21773040]

約数ペア:

[(1, 21773040), (2, 10886520), (3, 7257680), (4, 5443260), (5, 4354608), (6, 3628840), (8, 2721630), (10, 2177304), (12, 1814420), (15, 1451536), (16, 1360815), (20, 1088652), (24, 907210), (30, 725768), (40, 544326), (48, 453605), (60, 362884), (80, 272163), (120, 181442), (240, 90721), (257, 84720), (353, 61680), (514, 42360), (706, 30840), (771, 28240), (1028, 21180), (1059, 20560), (1285, 16944), (1412, 15420), (1542, 14120), (1765, 12336), (2056, 10590), (2118, 10280), (2570, 8472), (2824, 7710), (3084, 7060), (3530, 6168), (3855, 5648), (4112, 5295), (4236, 5140)]