81701648

素因数分解:

$2^4\times 7^1\times {\mathrm{419}}^1\times {\mathrm{1741}}^1$

素因数の和:2175

約数の個数: 40

約数和(自身を含む): 181446720

約数和(自身を除く): 99745072

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 419, 838, 1676, 1741, 2933, 3352, 3482, 5866, 6704, 6964, 11732, 12187, 13928, 23464, 24374, 27856, 46928, 48748, 97496, 194992, 729479, 1458958, 2917916, 5106353, 5835832, 10212706, 11671664, 20425412, 40850824, 81701648]

約数ペア:

[(1, 81701648), (2, 40850824), (4, 20425412), (7, 11671664), (8, 10212706), (14, 5835832), (16, 5106353), (28, 2917916), (56, 1458958), (112, 729479), (419, 194992), (838, 97496), (1676, 48748), (1741, 46928), (2933, 27856), (3352, 24374), (3482, 23464), (5866, 13928), (6704, 12187), (6964, 11732)]