1640451856

素因数分解:

$2^4\times {\mathrm{17}}^2\times {\mathrm{149}}^1\times {\mathrm{2381}}^1$

素因数の和:2572

約数の個数: 60

約数和(自身を含む): 3400424100

約数和(自身を除く): 1759972244

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 149, 272, 289, 298, 578, 596, 1156, 1192, 2312, 2381, 2384, 2533, 4624, 4762, 5066, 9524, 10132, 19048, 20264, 38096, 40477, 40528, 43061, 80954, 86122, 161908, 172244, 323816, 344488, 354769, 647632, 688109, 688976, 709538, 1376218, 1419076, 2752436, 2838152, 5504872, 5676304, 6031073, 11009744, 12062146, 24124292, 48248584, 96497168, 102528241, 205056482, 410112964, 820225928, 1640451856]

約数ペア:

[(1, 1640451856), (2, 820225928), (4, 410112964), (8, 205056482), (16, 102528241), (17, 96497168), (34, 48248584), (68, 24124292), (136, 12062146), (149, 11009744), (272, 6031073), (289, 5676304), (298, 5504872), (578, 2838152), (596, 2752436), (1156, 1419076), (1192, 1376218), (2312, 709538), (2381, 688976), (2384, 688109), (2533, 647632), (4624, 354769), (4762, 344488), (5066, 323816), (9524, 172244), (10132, 161908), (19048, 86122), (20264, 80954), (38096, 43061), (40477, 40528)]