40786880

素因数分解:

$2^6\times 5^1\times {\mathrm{197}}^1\times {\mathrm{647}}^1$

素因数の和:861

約数の個数: 56

約数和(自身を含む): 97767648

約数和(自身を除く): 56980768

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 197, 320, 394, 647, 788, 985, 1294, 1576, 1970, 2588, 3152, 3235, 3940, 5176, 6304, 6470, 7880, 10352, 12608, 12940, 15760, 20704, 25880, 31520, 41408, 51760, 63040, 103520, 127459, 207040, 254918, 509836, 637295, 1019672, 1274590, 2039344, 2549180, 4078688, 5098360, 8157376, 10196720, 20393440, 40786880]

約数ペア:

[(1, 40786880), (2, 20393440), (4, 10196720), (5, 8157376), (8, 5098360), (10, 4078688), (16, 2549180), (20, 2039344), (32, 1274590), (40, 1019672), (64, 637295), (80, 509836), (160, 254918), (197, 207040), (320, 127459), (394, 103520), (647, 63040), (788, 51760), (985, 41408), (1294, 31520), (1576, 25880), (1970, 20704), (2588, 15760), (3152, 12940), (3235, 12608), (3940, 10352), (5176, 7880), (6304, 6470)]