1281931216

素因数分解:

$2^4\times {\mathrm{19}}^2\times {\mathrm{221941}}^1$

素因数の和:221987

約数の個数: 30

約数和(自身を含む): 2621356962

約数和(自身を除く): 1339425746

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 361, 722, 1444, 2888, 5776, 221941, 443882, 887764, 1775528, 3551056, 4216879, 8433758, 16867516, 33735032, 67470064, 80120701, 160241402, 320482804, 640965608, 1281931216]

約数ペア:

[(1, 1281931216), (2, 640965608), (4, 320482804), (8, 160241402), (16, 80120701), (19, 67470064), (38, 33735032), (76, 16867516), (152, 8433758), (304, 4216879), (361, 3551056), (722, 1775528), (1444, 887764), (2888, 443882), (5776, 221941)]