28139950

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^2\times {\mathrm{1559}}^1$

素因数の和:1609

約数の個数: 36

約数和(自身を含む): 55275480

約数和(自身を除く): 27135530

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 190, 361, 475, 722, 950, 1559, 1805, 3118, 3610, 7795, 9025, 15590, 18050, 29621, 38975, 59242, 77950, 148105, 296210, 562799, 740525, 1125598, 1481050, 2813995, 5627990, 14069975, 28139950]

約数ペア:

[(1, 28139950), (2, 14069975), (5, 5627990), (10, 2813995), (19, 1481050), (25, 1125598), (38, 740525), (50, 562799), (95, 296210), (190, 148105), (361, 77950), (475, 59242), (722, 38975), (950, 29621), (1559, 18050), (1805, 15590), (3118, 9025), (3610, 7795)]