20106256

素因数分解:

$2^4\times {\mathrm{19}}^2\times {\mathrm{59}}^2$

素因数の和:164

約数の個数: 45

約数和(自身を含む): 41822751

約数和(自身を除く): 21716495

約数列:

[1, 2, 4, 8, 16, 19, 38, 59, 76, 118, 152, 236, 304, 361, 472, 722, 944, 1121, 1444, 2242, 2888, 3481, 4484, 5776, 6962, 8968, 13924, 17936, 21299, 27848, 42598, 55696, 66139, 85196, 132278, 170392, 264556, 340784, 529112, 1058224, 1256641, 2513282, 5026564, 10053128, 20106256]

約数ペア:

[(1, 20106256), (2, 10053128), (4, 5026564), (8, 2513282), (16, 1256641), (19, 1058224), (38, 529112), (59, 340784), (76, 264556), (118, 170392), (152, 132278), (236, 85196), (304, 66139), (361, 55696), (472, 42598), (722, 27848), (944, 21299), (1121, 17936), (1444, 13924), (2242, 8968), (2888, 6962), (3481, 5776)]