12720748

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{37}}^2\times {\mathrm{101}}^1$

素因数の和:202

約数の個数: 36

約数和(自身を含む): 24110352

約数和(自身を除く): 11389604

約数列:

[1, 2, 4, 23, 37, 46, 74, 92, 101, 148, 202, 404, 851, 1369, 1702, 2323, 2738, 3404, 3737, 4646, 5476, 7474, 9292, 14948, 31487, 62974, 85951, 125948, 138269, 171902, 276538, 343804, 553076, 3180187, 6360374, 12720748]

約数ペア:

[(1, 12720748), (2, 6360374), (4, 3180187), (23, 553076), (37, 343804), (46, 276538), (74, 171902), (92, 138269), (101, 125948), (148, 85951), (202, 62974), (404, 31487), (851, 14948), (1369, 9292), (1702, 7474), (2323, 5476), (2738, 4646), (3404, 3737)]